Sciencemadness Discussion Board - Science equipment looking for a home

Science equipment looking for a home

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Dr.Bob - 10-5-2015 at 15:14

I am now back for a while. Had a few days of non-stop work with two jobs, then some work travel and then a vacation. So now I am rested and recovered some from the work. I have to finish up a few orders that are not quite done yet, and then I will try to catch up with the messages. Thanks to everyone who helped me get most things completed before I got too busy or was traveling.

I am starting back on the books. I am trying to make a list of just a few of the books I have to give away shortly, there are about 5 boxes sorted through so far. As an example, I have many books on toxicology, lab safety, PC basics, macs and Mac programming, powerpoint, photoshop, and more in the current pile. I also have some softer science books on decision making, science policy, and environment.

It will take up to a year to sort through them all, but I am trying to get some lists together of things, as like the glassware, I cannot even get to the boxes of books on the bottom and back of the pile yet, so the sooner I get rid of some, the more I can look through. To give some perspective, one of the piles is boxes 4 deep, 4 high and 3 wide, each 18" cubed. I also have already filled 4 large bookcases, but not yet made a list of all of them. It is daunting, even through I work part time in the book business. Many of these books are older and don't have a barcode or ISBN number on the back, so they are harder to make a list of.

Funkerman23 - 17-5-2015 at 14:05

Pardon this if asked before but do you have any burets?

Dr.Bob - 21-5-2015 at 04:04

I am pretty sure that I found some recently, just trying to find them again before answering positive, and I have not yet fodun where I saw them, so give me a few more days to look ad I think I can find them and see what the specs are.

Bob

Funkerman23 - 21-5-2015 at 19:26

If it helps.. I am trying to gather more analysis oreinted glass as of late.. Burets, volumetric flasks.. melting point tubes..pastuer pipettes. That sort of thing. PM inbound but I'm assembling a list. Once again: thank you very much Dr Bob!!

Dr.Bob - 22-5-2015 at 05:21

I have lots of assorted items like that, some are listed, some I only have one or two of many types, like volumetric pipettes, so I have not listed them well, as each one is different. I still have lots of columetric flasks, some melting point tubes (I think 100 for $3 or 2 tubes of 100 for $5 was what I asked last time.). I only have a few boxes of pasteur pipettes left. I do still have a lot of manual small volume pipettors like the Gilson variety, from 10 ul up to 5 or 10 ml. I have lots of 200 ul ones along with tips, only a few 1 ml ones left. I just need to get the time to catalog them all.

The Volatile Chemist - 26-5-2015 at 11:58

Looking forward to the books! Will these be put on ebay too, or just the typical U2U transactions?

Dr.Bob - 27-5-2015 at 18:13

The books will be listed here and the postage paid via Paypal or such. My friend Ed and I will list some of the more valuable books on Amazon, but he does not have space to list them all, so the ones he cannot keep will be put on a list here. Not sure how to do that neatly, but something like the list below.

The first number is the ISBN number, then the title, author, and what box it was in (helps me find it). If you want to see more about any book. jut cut and paste that number into Amazon's search window and look for it. Once I get a more orderly list, I will attempt to create an Excel spreadsheet as well, and make a link, but it is just not ready yet. A few of these have already go to local teachers, all items will be subject to prior donation. This is only a small sample, I still have dozens of boxes to look through.

0309024013 Decision Making for Regulating Chemicals in the Environment (Paperback)by Environmental Studies Board (Author Environmental Studies Board (Author) JK71
0121404056 Techniques in Immunocytochemistry, Volume 2 (Paperback)by Gillian R. Bullock (Series Editor), Peter Petrusz (Series Editor Gillian R. Bullock (Series Editor), Peter Petrusz (Series Editor) JK71
1573870692 Library Relocations and Collection Shifts (Hardcover)by Dennis C. Tucke Dennis C. Tucker JK62
0295973374 Environmental Health Risks and Public Policy: Decision Making in Free Societies (The Jessie and John Danz Lecture Series) (Paperback)by David V. Bate David V. Bates JK44
030907259X Rebuilding the Unity of Health and the Environment: A New Vision of Environmental Health for the 21st Century (Compass) (Paperback)by Kathi E. Hann Kathi E. Hanna JK44
1885756089 Reporting on risk: A journalist's handbook on environmental risk assessment (Paperback)by Michael A. Kamri Michael A. Kamrin JK44
0674240774 Particles in Our Air: Exposures and Health Effects (Paperback)by Richard Wilson, Richard Wilso Richard Wilson, Richard Wilson JK44
0309053919 Carcinogens and Anticarcinogens in the Human Diet: A Comparison of Naturally Occurring and Synthetic Substances (Paperback)by Natl Academy Of (Author Natl Academy Of (Author) JK44
030908475X Cancer and the Environment: Gene-Environment Interactions (Paperback)by Research, and Medicine Roundtable on Environment Health Sciences (Author), et al Research, and Medicine Roundtable on Environment Health Sciences (Author), et al. JK44
0309052289 Biologic Markers in Urinary Toxicology (Paperback)by Natl Academy Of (Author Natl Academy Of (Author) JK44
0309039797 Biologic Markers in Reproductive Toxicology (Paperback)by Natl Academy Of (Author Natl Academy Of (Author) JK44
0873715101 Toxic Risks: Science, Regulation, and Perception (Hardcover)by Ronald E. Got Ronald E. Gots JK44
0873710061 Indoor Air and Human Health (Hardcover)by R. B. Gammage (Editor), et al R. B. Gammage (Editor), et al. JK44
0444015299 Molecular Genetics Cancer Diagnosis (Hardcover)by Jef Jeffrey Cossman JK44
0444872663 Atmospheric Ozone Research and Its Policy Implications: Proceedings of the 3rd Us-Dutch International Symposium, Nijmegen, the Netherlands, May 9-13 (Studies in Environmental Science) (Hardcover)by S. D. Lee (Author), et al S. D. Lee (Author), et al. JK44
1566701309 Fundamentals of Risk Analysis and Risk Management (Hardcover)by Vlasta Molak (Editor Vlasta Molak (Editor) JK45
087912136x Accident Prevention Manual: Engineering and Technology, Ninth Edition (Hardcover)by Natl Safety Cn (Author Natl Safety Cn (Author) JK45
0879121556 Accident Prevention Manual for Business and Industry: Administration & Programs (Hardcover)by Patricia M. Laing (Editor), Philip E. Schmidt (Technical Editor Patricia M. Laing (Editor), Philip E. Schmidt (Technical Editor) JK45
0873713036 The Work Environment: Occupational Health Fundamentals, Volume I (Hardcover)by Doan J. Hansen (Editor Doan J. Hansen (Editor) JK45
012425960x Drugs and Pregnancy: Maternal Drug Handling-Fetal Drug Exposure (Hardcover)by Beatrice Krauer (Author), et al Beatrice Krauer (Author), et al. JK45
085186435X DEV AND ETHICAL CONS IN TOXICO, (Special Publication) (Hardcover)by Royal Society of Chemistry (Editor Royal Society of Chemistry (Editor) JK12
0126323453 Molecular Epidemiology: Principles and Practices (Hardcover)by Paul A. Schulte (Editor), Frederica P. Perera (Editor Paul A. Schulte (Editor), Frederica P. Perera (Editor) JK12
0124556256 Loomis's Essentials of Toxicology, Fourth Edition (Hardcover)by Ted A. Loomi Ted A. Loomis JK12
0674773047 Risk vs. Risk: Tradeoffs in Protecting Health and the Environment (Hardcover)by John D. Graham (Editor), et al John D. Graham (Editor), et al. JK19
0849326869 Understanding Toxicology: Chemicals, Their Benefits and Risks (Hardcover)by H. Bruno Schiefe H. Bruno Schiefer JK19
1573921955 Chemical Sensitivity: The Truth About Environmental Illness (Consumer Health Library) (Hardcover)by Stephen Barret Stephen Barrett JK19
0896035247 2-D Proteome Analysis Protocols (Methods in Molecular Biology) (Hardcover)by Andrew J. Link (Editor Andrew J. Link (Editor) JK61
0841234620 The ACS Style Guide: A Manual for Authors and Editors (Paperback)by Janet S. Dodd (Editor Janet S. Dodd (Editor) JK61
0309043433 Funding Health Sciences Research: A Strategy to Restore Balance (Hardcover)by Committee on Policies for Allocating Health Sciences Research Funds (Author), et al Committee on Policies for Allocating Health Sciences Research Funds (Author), et al. JK61
0879692324 DNA Technology and Forensic Science (Banbury Report) (Hardcover)by Jack Ballantyne (Author), et al Jack Ballantyne (Author), et al. JK61
0262692155 MPI: The Complete Reference (Vol. 1) - 2nd Edition, Vol. 1 - The MPI Core (Paperback)by William Grop William Gropp JK61
0262571234 MPI: The Complete Reference (Vol. 2), Vol. 2 - The MPI-2 Extensions (Paperback)by William Grop William Gropp JK61
0300073038 Thinking Ecologically: The Next Generation of Environmental Policy (Yale Fastback Series) (Paperback)by Daniel C. Est Daniel C. Esty JK61
0938151142 Help!: The Art of Computer Technical Support (Paperback)by Ralph Wilso Ralph Wilson JK61
0300065183 Power Without Responsibility: How Congress Abuses the People through Delegation (Paperback)by David Schoenbro David Schoenbrod JK61
0135518393 Manager's Script Book (Hardcover)by W. H. Weis W. H. Weiss JK61
0735504741 The Pension Answer Book 2000 (Hardcover)by Stephen J. Krass (Author Stephen J. Krass (Author) JK61
0873712560 Waste Disposal in Academic Institutions (Hardcover)by James A. Kaufman (Author James A. Kaufman (Author) JK62
0306421208 Video Microscopy (Hardcover)by Shinya Inoué, Kenneth R. Sprin Shinya Inoué, Kenneth R. Spring JK62
0387976620 Introduction to Maple (Hardcover)by A. Hec A. Heck JK62
0824701577 Mass Spectrometry of Biological Materials, Second Edition (Hardcover)by Barbara S. Larsen (Editor), Charles N. McEwen (Editor Barbara S. Larsen (Editor), Charles N. McEwen (Editor) JK62
0134540670 Identification of Protein Consensus Sequences: Active Site Motifs, Phosphorylation, and Other Posttranslational Modifications (Ellis Horwood Books in the Biological Sciences) (Hardcover)by Alistair Aitken (Author Alistair Aitken (Author) JK62
0873711521 Identifying and Regulating Carcinogens (Hardcover)by Office of Technology Assessment (Author Office of Technology Assessment (Author) JK62
0895731223 Protein Purification (Hardcover)by Jan-Christer Janson (Author Jan-Christer Janson (Author) JK62
0849301556 CRC Handbook of Mathematical Curves & Surfaces (Hardcover)by David H. (David Henry) Von Segger David H. (David Henry) Von Seggern JK62
0824767667 Cadmium Toxicity (Modern Pharmacology-toxicology Series) (Hardcover)by J. H. Mennear (Author J. H. Mennear (Author) JK62
0875843069 The Essential Alfred Chandler: Essays Toward a Historical Theory of Big Business (Paperback)by Alfred Dupont Chandle Alfred Dupont Chandler JK62
0195075617 Textbook of Endocrine Physiology (Paperback)by James E. Griffin (Editor), Sergio R. Ojeda (Editor James E. Griffin (Editor), Sergio R. Ojeda (Editor) JK62
0896035182 Quantitative PCR Protocols (Methods in Molecular Medicine) (Hardcover)by Bernd Kochanowski (Editor), Udo Reischl (Editor Bernd Kochanowski (Editor), Udo Reischl (Editor) JK62
0471137774 Genetics and Cancer Susceptibility: Implications for Risk Assessement (Progress in Clinical and Biological Research) (Hardcover)by Cheryl Walker (Edi Cheryl Walker (Editor), et al. JK63
0891893008 Immunohistopathology: A Practical Approach to Diagnosis (Hardcover)by Jules M. Elia Jules M. Elias JK63
0442001541 Common Sense Toxics in the Workplace: A Manual for Doctors, Nurses, Emergency Responders, Employers, Industrial Hygienists, Risk Managers, Claims Ad (Hardcover)by Ilene R. Dans Ilene R. Danse JK63
0300065183 Power Without Responsibility: How Congress Abuses the People through Delegation (Paperback)by David Schoenbro David Schoenbrod JK63
0309089034 Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research (Paperback)by Committee on Guidelines for the Use of Animals in Neuroscience and Behavioral Research (Author), et al Committee on Guidelines for the Use of Animals in Neuroscience and Behavioral Research (Author), et al. JK63
1560324236 Academic Environment: A Handbook For Evaluating Employment Opportunities In Science (Paperback)by Karl W. Lank Karl W. Lanks JK63
085066831X Occupational Toxicology (Paperback)by Neill H. Stacey (Editor Neill H. Stacey (Editor) JK63
155786585X The State of Humanity (Paperback)by Julian Simon (Editor Julian Simon (Editor) JK63
0205121314 Instruction: A Models Approach (Hardcover)by Mary Alice Gunter (Author), Thomas H. Estes (Author Mary Alice Gunter (Author), Thomas H. Estes (Author) JK63
089603383X cDNA Library Protocols (Methods in Molecular Biology) (Hardcover)by Ian G. Cowell (Editor), Caroline A. Austin (Editor Ian G. Cowell (Editor), Caroline A. Austin (Editor) JK63
0306424606 Practical Stereology (Hardcover)by John C. Russ, Dr. John C Rus John C. Russ, Dr. John C Russ JK63
0674329252 Fundamentals of Radiology: Third Edition (Commonwealth Fund Publications) (Hardcover)by Lucy Frank Squir Lucy Frank Squire JK63
0306422050 The Cytoskeleton: A Target for Toxic Agents (Rochester Series on Environmental Toxicity) (Hardcover)by Po Polly R. Sager JK63
0871501236 Applied Regression Analysis and Other Multivariable Methods (The Duxbury series in statistics and decision sciences) (Hardcover)by David G. Kleinbaum, Aaron T. Curn David G. Kleinbaum, Aaron T. Curns JK63
0470208562 Enzyme Induction, Mutagen Activation, and Carcinogen Testing in Yeast (Ellis Horwood Series in Electrical and Electronic Engineerin) (Paperback)by Alan Wiseman (Other Contributor Alan Wiseman (Other Contributor) JK64
0835214885 Copyright Handbook (Hardcover)by Donald F. Johnsto Donald F. Johnston JK64
0873712919 Laboratory Accreditation and Data Certification: A System for Success (Hardcover)by Carla H. Dempse Carla H. Dempsey JK64
0444802193 Mitogenic Lymphocyte Transformation (Monographs in Anaesthesiology, Volume 2) (Hardcover)by David A. Hum David A. Hume JK64
0024708003 Information and records management (Loose Leaf)by Wilmer O. Maedke, Mary F. Robe Wilmer O. Maedke, Mary F. Robek JK64
0226816265 A Manual for Writers of Term Papers, Theses, and Dissertations (Chicago Guides to Writing, Editing, and Publishing) (Hardcover)by Kate L. Turabia Kate L. Turabian JK65
1573870277 Electronic Styles: A Handbook for Citing Electronic Information (Paperback)by Xia L Xia Li JK65
0309039479 Shaping the Future: Biology and Human Values (Hardcover)by Steve Olso Steve Olson JK65
0306422794 NMR in the Life Sciences (Nato Science Series A

(Hardcover)by E. Morton Bradbury (Author), Claudio Nicolini (Author E. Morton Bradbury (Author), Claudio Nicolini (Author) JK65
0201090929 Biochemistry (Loose Leaf)by Geoffrey L. Zubay (Author Geoffrey L. Zubay (Author) JK65
0080298265 Differential Toxicities of Insecticides and Halogenated Aromatics (International encyclopedia of pharmacology and therapeutics) (Hardcover)by F. Matsumur F. Matsumura JK65
0306422794 NMR in the Life Sciences (Nato Science Series A

(Hardcover)by E. Morton Bradbury (Author), Claudio Nicolini (Author E. Morton Bradbury (Author), Claudio Nicolini (Author) JK65
0387965556 Protein Purification: Principles and Practice (Springer Advanced Texts in Chemistry) (Hardcover)by Robert K. Scope Robert K. Scopes JK65
0817636056 Gene Expression: General and Cell-Type-Specific (Progress in Gene Expression) (Hardcover)by M. Karin (Editor M. Karin (Editor) JK65
0875848699 Delivering Results: A New Mandate for Human Resource Professionals (Hardcover)by David Ulric David Ulrich JK65
0521317940 Just Health Care (Studies in Philosophy and Health Policy) (Paperback)by Norman Daniel Norman Daniels JK71
0915241013 The dose makes the poison: A plain-language guide to toxicology (Hardcover)by M. Alice Ottoboni, Patricia Fran M. Alice Ottoboni, Patricia Frank JK71
0195033809 An Introduction to Epidemiologic Methods (Monographs in Epidemiology and Biostatistics) (Paperback)by Harold A. Kah Harold A. Kahn JK71
0471913693 Instrumentation (Analytical Chemistry by Open Learning) (Paperback)by Graham Currel Graham Currell JK71
0935702547 Of Urfs and Orfs: A Primer on How to Analyze Derived Amino Acid Sequences (Paperback)by Russell F. Doolittl Russell F. Doolittle JK71
0815302703 Introduction to Protein Structure (Paperback)by Carl-Ivar Brändé Carl-Ivar Brändén JK71
0801628733 Laboratory Mathematics: Medical and Biological Applications (Paperback)by June Mundy Campbell, et al June Mundy Campbell, et al. JK34

Texium - 12-6-2015 at 22:21

I received my order of 14/20 flasks etc from Dr.Bob today. Everything arrived unscathed and it's looking great. Thanks again Dr.Bob!

Can't wait to get the rest of my 14/20 equipment in from China so I can make use of them.

Dr.Bob - 22-6-2015 at 18:25

I found a box of more small glass bottles recently, almost al with Teflon lined caps, and I would like to sell them to get them out of my way. I have more 125 ml amber quarpak bottle with Teflon caps, some 120 ml wide mouth clear Qorpak bottles, some 2 oz bottles, and some clear square bottles with Teflon caps in ~3 and ~6 oz sizes. For anyone who wants a variety of bottles, I can do a package of 10 of them now for $16, plus a few other samples. The shipping would be $12 for flat rate priority mail (total of $28), or slightly less for east coasters. If you want 20 bottles, the shipping via flat rate box would only be $16, so a total of $48, and I will fill any space left with vials. I will adjust the mix to your needs, as best as I can.

DFliyerz - 27-6-2015 at 19:15

Hey Dr. Bob, do you have any hot plate/stirrer combos?

Dr.Bob - 29-6-2015 at 19:00

I have a few broken hot plate/stirrers left, but have not yet checked them to see if fixable. I will get to them eventually, but just too busy right now to get it finished. But I will likely get a few fixed eventually.

DFliyerz - 29-6-2015 at 21:19

Alright, sounds good! Tell me if you get to them.

Dr.Bob - 9-7-2015 at 19:22

Here is the latest list, I am running completely out of 24/40 flasks, and many sizes of media bottles, filter flasks, and erlenmeyers. If the list says 0, then I am out for now. I am also backed up a bit on orders, I have a few people I need to answer requests on, so it may take a little while to answer messages, so sorry.

Thanks to everyone for there patience and help in finding this stuff a home.

Bob

Attachment: Glassware Inventory.xls (73kB)
This file has been downloaded 971 times

Dr.Bob - 18-7-2015 at 15:11

I have had a number of people ask about glass flash chromatography columns recently, and they were scattered across a few places, so I have recently tried to gather most of them and take some photos. I have already sold a few of them, but still have many left, even more than pictured. There are several types, 24/40 jointed tops, S35 jointed tops, and a few other types (open top, 29/42, threaded, S50, etc).

I sell single columns for $10 per 1/2 of diameter, but if you are willing to buy a set of 4 or more, I will offer a discount, typically a set of 4 or 5 for $100 total, depending on size and complexity. If anyone is willing to buy the ones without built in frits (they require a piece of glass wool and a layer no sand on the bottom before the silica gel is added) I will go even lower in price, just contact me with your wish list and I will make a price. I do also still have a few air flow controllers for the S35 columns as well; I would include one with a set of 4 or more.

Here are some photos of them

Dr.Bob - 6-10-2015 at 18:01

Folks,

I want to ask anyone who is waiting on me for a response to please remind me of what you are waiting on. I have been very busy, and as well, I have had a number of people ask me about things and many then haven't gotten back once I sent them a message back or never paid once invoiced, so I have a growing pile of stuff that I have gathered for people, and I am having a hard time keeping track of so many orders, some of which I pulled months ago, and have not heard back about. The u2u system is hard to search or sort, and I have about 3000 messages there, so some of the older messages are harder to find. Sorry for the delays, but I am just getting a lot of piles of stuff built up.

gdflp - 31-10-2015 at 05:53

Received my 2nd order from Bob today, meticulously packed as usual. Low prices, remarkably generous with extras, and a pleasure to communicate with all around. I can't recommend him enough!

Dr.Bob - 7-11-2015 at 11:24

Here is an updated copy of the remaining inventory. I am running out of many more items, but also found a few items to add, like 2 2L sep funnels, 2 250 ml addition funnels, and some brand new oval stir bars in a couple of sizes. Still have some brand new Pyrex 250 ml beakers for cheap as well. Pretty much out of 24/40 flasks (I have a few flat bottom ones left, not listed yet, ask me for those), still have many 14/20 sizes left.

I also found a few 2L glass stoppered reagent bottles, many have small chips on the top edge of the stopper but are otherwise, fine. I would be willing to take offers on them, they are bulky and I would like to get rid of some, but they are heavy to ship, so best for east coast or with other items to keep the postage low. Also still have a few 2000 ml grad cylinders with glass stopper tops.

[Edited on 7-11-2015 by Dr.Bob]

Attachment: Glassware Inventory.xls (73kB)
This file has been downloaded 842 times

Dr.Bob - 6-12-2015 at 16:08

Just found some more sep funnels, addition funnels, and some 3 neck rbfs. Still trying to make a list to add to the inventory. Also found a box of 29/42 glassware, lots of 3 necks, some condensers, adapters, and addition funnels. And I have found enough parts to assemble some more 14/20 distillation kits as well.

Acidum - 7-12-2015 at 12:18

Can't seem to find info - Has anyone from Europe tried to buy from Dr.Bob? I am interested in shipping fees (i know from my other hobby that US -> Europe fees can be rather high)...

Dr.Bob - 8-12-2015 at 19:05

Here is a new copy of the inventory. I am running out of many more items, but also found a few items to add, like sep funnels, addition funnels, and some brand new oval stir bars in a couple of sizes. Still have some brand new Pyrex 250 ml beakers for cheap as well. Pretty much out of 24/40 flasks, but have many 14/20 and just found a box of 29/42 rbfs plus almost an entire distillation kit in 29/42 if anyone would be interested in that, I can assemble a pretty nice setup which would work from 250 ml to 3+L. Also still have a bunch of crimp top serum bottles, caps and a 20 mm crimper, more vials, some silica gel cartridges, HPLC vials, and more.

I can ship to Europe and other countries, up to 4 pounds is pretty easy, costs up to $40 for 4 pounds, depending on location, so only practical for smaller or lighter items, like 14/20 kits, vials, smaller adapters and items, anything light. If you tell me what you are looking for, I can estimate the postage. It is not practical for heavy items like filter flasks, inexpensive items like beakers or test tubes (the postage is more than the item), or electronics (since most are 110V, 60 Hz for US use).

Attachment: Glassware Inventory.xls (74kB)
This file has been downloaded 946 times

[Edited on 9-12-2015 by Dr.Bob]

Need help regarding lab equipment

On the pingas - 8-12-2015 at 19:23

OK so I have a problem in my country its very annoying to obtain even some of the most basic chems (thank you meth heads) nitric acid allso is incredibly difficult to get my hands on believe me I have tried at least a dozen ways but due to tight restrictions and high prices it can't be purchased for the casual hobbyist.
I have tried excuses such as for etching or cleaning jewlery but no luck other than company's who ask ridiculous prices eg one company told me they would at $120 for 500ml of 70% I mean who the fluff charges that.

This means of course I have to make my own which is actually one of the things I enjoy about science even if the gov says I can't have it I can.
Its kind of like a big F U if you will .

Any who getting back on topic I have run out of the nitric I had stashed from eBay but it will no longer ship to NZ so I must make my own.
I intend to use the nitrate salt sulphuric acid distillation method.
Thing is I'm new to buying distillation kits and was wondering are the cheap Chinese made no brand ($100 and under) kits any good for this purpose they do have some boro ones and are sold on eBay quite cheaply.
if not could somone please point me in the direction of a kit that will ship to NZ at a reasonable price.

Final question my acid was stored in an borosilacate bottle but since these are rather pricey particularly the ones with gg stoppers could I get away with beer bottles or in other words are all types of glass acid resistant or just boro? Google dosent seem to be able to awnser this question to my satisfaction.

if so then as far a caps go I'm thinking either spray the cap with tefflon lube and let evaporate and reapeat to form a coating or tefflon tape around threads will either of these work ?
If it helps the concentrations I intend to store will be HNO3 65-70% and H2SO4 70-98% for no longer than six months standing in a tub filled with sodium bicarb.

Any input would be appreciated.

[Edited on 9-12-2015 by On the pingas]

[Edited on 9-12-2015 by On the pingas]

On the pingas - 9-12-2015 at 14:10

Nobody?

j_sum1 - 9-12-2015 at 14:38

I don't know what hurdles you will have to jump to import glass to NZ. I know what happens this side of the ditch.
My experience of Chinese glass is good but I think you might run into trouble if you go for ultra cheap.

Bottles? My WFNA is in a small amber bottle previously used to hold peroxide. It has a teflon cap. No issues thus far.

Beyond that, a lot depends on what you are using your lab for and what quantities you are working with.

Dr.Bob - 2-1-2016 at 18:57

I just took photos of some more distillation glassware for someone, and thought I would post them here as well.

Top left and right is 14/20 dist heads, bottom left are 24/40 dist head and 24/40 receiver. Bottom right are 14/20 short paths and another simple distillation head. I'll try to post more photos soon.

DSCN8486 14-20 short paths and simple head.JPG - 57kB

Dr.Bob - 9-1-2016 at 17:44

I have finally assembled a few more 14/20 kits now; they will likely be my last kits, as I am running out of the pieces, I had to buy and trade a few items to make complete kits. They each include about 10 flasks, from 5-250 or 500 ml, a mix of 1, 2, or 3 neck rbfs, and a few pear or recovery shaped ones. They also have a dist. head, claisen adapter, curved vacuum inlet, straight vac adapter, therm adapter, gas inlet, simple liebig condenser, 14/20 glass stopper, powder funnel, and a few other odds and ends. That kit costs $100 plus about $10 for postage within the US. Postage to Europe is about $40, that is pretty high, and limits the size of flasks and the total weight to 4 pounds.

I can additionally add an addition funnel (10, 25, or 50 ml, $20), coil condenser ($20), filter funnels, fraction collectors, or many other pieces (see photos or spreadsheet). Every kit is slightly different, so if you want certain things, let me know and I can try to customize it. I am a little backlogged right now on orders, but should catch up soon, and these are mostly ready to pack and ship, so I can ship them quickly. And I still have many 14/20 flasks in certain sizes and styles, but am running out of some sizes again.

carrant - 21-1-2016 at 20:05

I received my order from Dr.Bob today and everything was extremely well packed and arrived in excellent condition!

Very easy to communicate with and a very pleasant experience ordering.

Dr.Bob - 3-2-2016 at 10:01

I have found a box of covered glass dishes. They almost look like Pyrex dishes for leftovers, but I have since discovered that they are sold for staining slides and other purposes. But they would work well as small containers for the lab. I have about a dozen of each size. I am happy to sell them for cheap, so if you are interested, let me know, make me an offer for some or I can throw in a few free with any other order. I have a few other very small round covered containers, not sure what they are good for, but happy to sell them cheap or give some away.

They seem to be soda lime glass, so not good for heating in. Here are some links to descriptions and photos of them:

ITEM_DDCAE484170230F1AB7A001EC9FCDFBA_CRM_IMAGE_900203_OL.gif.jpg - 6kB

ITEM_DDCAE484170230F1AB7A001EC9FCDFBA_CRM_IMAGE_900203_OL.gif.jpg - 6kB

ITEM_DDCAE4841702AAF1AB7A001EC9FCDFBA_CRM_IMAGE_900303_OL.gif.jpg - 6kB

ITEM_DDCAE4841702FFF1AB7A001EC9FCDFBA_CRM_IMAGE_900403_OL.gif.jpg - 5kB

http://wheaton.com/cell-culture/staining-ware/dish-and-cover...

http://wheaton.com/cell-culture/staining-ware/dish-and-cover...

http://wheaton.com/cell-culture/staining-ware/dish-and-cover...

http://www.chemglass.com/product_view.asp?pnr=CG-8122

http://www.chemglass.com/product_view.asp?pnr=CG-8124

CharlieA - 20-2-2016 at 16:49

Just received my first order from Dr. Bob a couple of hours ago. There was not a cubic inch of wasted space in the package that wasn't packed with some little goodies or other. Thanks Dr. Bob for the prompt and exceptional service!

Dr.Bob - 12-3-2016 at 13:32

I have found several boxes of 29/42 glassware recently, with lots of multineck frbfs, addition funnels, adapters, and more. If you are looking for anything in that joint size, please inquire.

I have gathered together a 29/42 distillation and reaction setup with about 6 rbfs, from 100 - 1000 ml (one to 4 necks), distillation head, condenser, claisen, curved vacuum adapter, gas inlets, addition funnel, and more, it would cost $125 plus postage. And I can add more pieces as needed. If anyone is interested, let me know, and we can discuss exactly what you want.

I have also found a few more 1 and 2 L sep funnels, a few people had asked me about those and I was out, but I have a few now.

[Edited on 12-3-2016 by Dr.Bob]

Dr.Bob - 23-4-2016 at 12:51

I recently found several 250 ml sep funnels with missing glass stopcocks, and found stopcocks and clips for them, greased them up to work and will sell them for only $25 each since they are glass stopcocks.

I have also found PTFE stopcocks for a number of smaller sep funnels in 30, 60, and 125 ml, so I am well stocked with those now. I have been a bit busy lately, so a little slow to answer people, but I am catching up now. I still have a few 14/20 dist. kits ready as well.

myristicinaldehyde - 30-4-2016 at 12:17

Received well, well over 1000 USD worth of quality glass, with shipping for exactly 200. Packed with obsessive care, it arrived in mint condition. 11/10 would splurge life savings again.

[Edited on 2016-4-30 by myristicinaldehyde]

IceDahl - 1-5-2016 at 10:31

Do you think you will ever get a Heating mantel 500ml?

Dr.Bob - 3-5-2016 at 15:30

I still have a few various heating mantles that need to be checked out, most are pretty worn, so I have to make sure that they work OK. But most look old or have been overheated some so the insulation has gotten a little brittle. So I might make a good deal on one, if you are willing to accept an ugly duckling. I'll have to look and see if there is a 500 ml one left.

lovelyduvet - 8-5-2016 at 11:03

154 pieces of $350. Wish I had the cash for it today, but I don't so I thought I'd pass it on.
http://m.ebay.com/itm/New-Lot-Of-154-Pieces-Of-Chemistry-Lab...
And also, hello everybody. This is an awesome forum and I look forward to contributing. Thanks.

image.jpeg - 32kB

Loptr - 11-5-2016 at 07:59

Quote: Originally posted by lovelyduvet

154 pieces of $350. Wish I had the cash for it today, but I don't so I thought I'd pass it on.
http://m.ebay.com/itm/New-Lot-Of-154-Pieces-Of-Chemistry-Lab...
And also, hello everybody. This is an awesome forum and I look forward to contributing. Thanks.

The listing claims to be local pick up only in Canfield, Ohio, USA. I am sure you could get them to work out a deal.

Melgar - 15-5-2016 at 02:58

Do you have enough glassware left for a 14/20 vacuum distillation setup with a 500 mL main flask, and a few smaller ones as receivers? And perhaps a Buchner funnel, preferably polypropylene? Also, are you anywhere near Asheville? I have a chemistry-inclined friend that'll be heading through the area, and might have him pick me up some stuff. Even if you're not, he might not mind going out of his way to pick it up. Surprised to see you still getting rid of stuff here; I put in an order a few years ago, then had an eye injury (not chemistry related) and sort of dropped off the map.

[Edited on 5/15/16 by Melgar]

Dr.Bob - 16-5-2016 at 03:49

I still have a few 14/20 kits assembled, a couple have a 500 ml 3 neck as the largest flask. I am asking $100 for the kit, it comes with everything but the thermometer, I can add one of those for $15-20, depending on what type you want. I'll send a message about the details.

I am a bit surprised to still be selling this myself, but I have sold much of the bulk of the glassware, most of the beakers, most larger erlenmeyers, most 24/40 rbfs, and much more has been sold, but I still have a lot of more unusual items, a large amount of 24/40 accessories, lots of 14/20 and 29/42 jointed items, and certain items like volumetric flasks, small and screw thread test tubes, vials, and a few sizes of bottles. Fortunately, what is left is shrinking in size, but still fills many boxes, but I also never realized how many boxes I actually had at the start, as I had shoved them in to so many nooks and crannies in my garage, basement, and other storage spaces.

That is part of my problem, the stuff if not all in one neat place, but shoved into boxes in a number of places. I am slowly neatening it up, but still have some boxes with a little of everything in them. That is part of why my inventory changes with time, as I find things, bus also I have ended up helping a few other people sell odd bits of glassware that have asked me to help them also clean up a few other small labs.

[Edited on 16-5-2016 by Dr.Bob]

The Volatile Chemist - 16-5-2016 at 14:13

Quote: Originally posted by Loptr

Quote: Originally posted by lovelyduvet

The listing claims to be local pick up only in Canfield, Ohio, USA. I am sure you could get them to work out a deal.

Haha, please don't buy this, I want to buy it when I graduate high school, and Canfield's (relatively) near where I live... kidding, with regards to the please, but if it's still around when I graduate, I'm totally going to pick it up

lovelyduvet - 25-5-2016 at 15:24

Quote: Originally posted by The Volatile Chemist

Quote: Originally posted by Loptr

Quote: Originally posted by lovelyduvet

The listing claims to be local pick up only in Canfield, Ohio, USA. I am sure you could get them to work out a deal.

go for it! I don't live anywhere near there

The Volatile Chemist - 25-5-2016 at 18:33

Yay

It's on my list. Really hoping the guy keeps it up for another 1.5 years

HeYBrO - 25-5-2016 at 21:14

Quote: Originally posted by The Volatile Chemist

Yay

It's on my list. Really hoping the guy keeps it up for another 1.5 years

tumblr_n3dfwlPSL11rlo1q2o1_1280.jpg - 462kB

The Volatile Chemist - 26-5-2016 at 08:55

Haha, after all this time. Whatever. Though I suppose by the time I'm able to buy glassware myself Dr. Bob will have sold out too. Anyone found stuff at a yard sale before...?

lovelyduvet - 27-5-2016 at 22:45

one time at a rural garage sale I found a 12L RBF sitting in a pile of junk. I was 15 or so. I remember wanting to take it home, drill a hole in the bottom and turn it into a gravity bong, what an inspired thought! lol

The Volatile Chemist - 3-6-2016 at 11:58

Aagh.....that's terrible

I've found lots of electronics to take apart, but not much else. Dr. Bob should have a yard sale with all his stuff; it'd be a good way to convince people to come to an amateur chemistry conference haha....

Dwarvensilver - 17-6-2016 at 12:57

Greets all
I work in research and currently have access to ~ 650 used test/culture tubes.

I am offering these up to anyone willing to just pay the shipping.
I hate seeing them go into glass recycling.
We chuck them as we test for stuff in the ppm, ppb range and don' want cross contamination and results
These are standard ~1/2 x6 inch or there about.
If you doing a screaming gummy bear haha no worries about contamination:

Disappointment

Armistice19 - 17-6-2016 at 13:27

Distillation apparatus, one of the many prized possessions of the applied chemist. This sounds delicious, if only I had money before this coming Friday

Oh well, next time.

Dr.Bob - 20-6-2016 at 06:40

I'll still have stuff after this Friday. I still also have some new test tubes, mostly smaller ones, like 10x75, 13 x 100mm, but also some larger ones, and screw top cap ones, which are very expensive if bought retail. I also have a number of boxes of 1, 2, 4, 6, an 8 dram vials with various cap types, some clear, some amber, most are boxes of either 72, 100, or 144, they tend to be $10 - 20 for a whole box (depending on size/weight) or about $1/handful for smaller amounts.

I still have lots of large TLC plates, chambers, flash columns, even some HPLC columns, if you are looking for anything, just let me know. I am traveling a lot of the next 2 weeks, so I may be slow to respond for a little while, but I will get back as soon as I can.

Dr.Bob - 27-6-2016 at 18:21

One of the members here pointed out a few good deals on small Qorpak bottles with PTFE lined caps, so I have a good number of brand new small bottles with PFTE lined caps. I also still have some other sizes, so here are a few deals:

- I have some clear french square bottles in 2 (new) , 4 (used), and 8 (used) oz (60, 120, and 240 ml) sizes with the PTFE lined green caps. These normally run over $2-3 each, but I will sell them for $2 each in small numbers, or $1 apiece if you buy a mix of a dozen or more. http://www.qorpak.com/category/183/french-square-bottles

I have some amber medium mouth bottles for solids and some liquids, in 2 (new) , 4 (new/used), and 8 (new/used) oz (60, 120, and 240 ml) sizes with the PTFE lined green caps, plus a few other sizes. These normally run over $2-3 each, but I will sell them for $2 each in small numbers, or $1 apiece if you buy a mix of a dozen or more. I have only a few bigger sizes, quantities are limited. http://www.qorpak.com/category/181/packer-bottles

I also just got more 2 oz, (60 ml, new) narrow mouth amber bottles with the PTFE lined green caps, I am out of the 120 ml ones right now, but will get more eventually. They would be $1 each, or less in quantities. These are safe for bromine, acids, solvents, and more. http://www.qorpak.com/category/2286/boston-round-bottles

I also still have some medium round bottles, in a variety of sizes, but mostly 4 oz/120 ml sizes. Most also have PFTE caps, but not all of them. These sell for $2-4 new, I would sell them for $2 each, or less with other orders.
http://www.qorpak.com/category/184/graduated-medium-round-bo... and

http://www.qorpak.com/category/2288/medium-round-bottles

If people are willing to take a variety of sizes and types, I can do a medium flat rate box with more than 20 various smaller (mostly 2-4 oz) bottles, almost all PFTE lined (at least 20), plus a variety of whatever other bottles and vials fit in it for $20, plus the postage of $12 each. If you want larger bottles, there will be fewer in the box, but the same price. The postage is a reasonable deal if you want many smaller bottles.

If you want a large flat rate box the cost would be $40 plus the postage of $17. Same thing, more smaller bottles or fewer big ones for the same price, just let me know about what you want. I cannot create an exact list of the bottles, as I just don't have time, and it is changing quickly, but I am happy to try to include whatever you want as best I can.

I will be traveling a lot the next week, but then back for a while. People keep saying that someone should buy these and create a group buy, so I am trying this one more time.

Bob

Dr.Bob - 21-7-2016 at 06:47

If anyone is interested in Qorpak bottles, I can get the Amber narrow mouth ones with PTFE caps, in 120 and 240 ml sizes right now for a good price, which would be under $2 each. These are ideal for bromine, acids, organics, nastys, almost anything other then HF.

But I don't want to buy more stuff unless someone is willing to buy it from me. I still have the 60 ml bottles I bought a case of a while back after several people said that they wanted some, but few have bought any.

Dr.Bob - 4-9-2016 at 17:17

A few more things I have found recently. I found another package of new 120 ml narrow mouth amber glass qorpaks with PTFE lined caps and plastic safety coating. I am asking $3 each for them, plus shipping. I have found quite a cache of bottles lately.

I also have found several boxes of used glass volumetric pipettes of all sizes and types, several boxes of them. If anyone here can use a bunch, I am willing to sell them cheap, the shipping may be more than the cost of the pipettes.

I have been slow to answer some people, due to a huge number of emails coming in for a while, if I have not answered you in due time, please remind me, I may have missed a few, the u2u system is very hard to keep track of perfectly. I had several large orders which have taken a while to fill, but I am catching up slowly. Also, I am having to move out of some of my leased storage space soon, so that will keep me busy from now until the end of the year.

Dr.Bob - 17-9-2016 at 18:39

I have matched some Soxhlet extractors with the correct condensers finally, so I have a few of each. They are all used, all have 24/40 bottom joints, some have some minor chips or the top outlet of the condenser is broken, or other minor issues, but all should work fine. I am asking about 1/4 of the new price, that seems fair for some wear. If anyone wants two sizes, I will drop $10 of the pair. Let me know what state you are in and I can calculate the postage as well. They are fragile, so while they are light, they need to be packed well, and the box may be a bit larger than normal for my packing. No rbfs are included, I am almost complete out of 24/40 rbfs, except for a few 250 ml 3 necks, and a few other odd ones.

small - ~50 ml volume, condenser joint is 34/45 - asking $60
med - ~85 ml volume, condenser joint is 45/50 - asking $70
large - ~200 ml volume, condenser joint is 55/50 - asking $80

They are a variety of brands, some mixed, but like these in general: http://chemglass.com/product_view.asp?pnr=CG-1369

I also have lots of 29/42 stuff, I have found a few boxes of it, so I have almost everything imaginable, except Soxhlets, in 29/42. Plus some 14/20 still left as well, down to one last kit, might have enough to scrap together one more, but running out of certain parts.

MrHomeScientist - 19-9-2016 at 05:53

I just completed yet another glassware order from Dr. Bob, which is my fourth or fifth I think. As always, I'm greatly satisfied with everything. The price is amazing, everything was packaged extremely well, and Bob always throws in a few extra goodies

A real pleasure to deal with. Thanks again!

William Chase Henson - 2-10-2016 at 18:11

What's left?

Dr.Bob - 3-10-2016 at 07:29

The most recent list link is below, I will try to post an updated spreadsheet with more stuff soon. But the spreadsheet does not include the items I have listed specifically in the last few pages of posts. I have one pretty complete 14/22 kit left ($100, $120 with a thermometer), enough to put together one decent 24/40 kit ($100, $120 with a thermometer), enough for several 29/42 kits, should anyone have a desire to do larger scale work, those can include the basics but I also still have many addition funnels, condenser types Dean Starks, and other extras for 29/42. I also have more Sep funnels in 60 ml to 2L left now, and the sohxlets listed above now, still need to compile those into the list.

http://www.sciencemadness.org/talk/viewthread.php?tid=15667&...

Funkerman23 - 10-10-2016 at 08:57

What would you include in a full 29/42 kit? I don't remember what all would be in it and I can't seem to find the list. If it helps I know I would be interested in at least one 500ml or 1 liter funnel and a few thermometer and gas inlet adapters. It seems like a lot of my messages are getting lost as of late so if I didn't respond Please know that was not intentional..Many thanks for your dedication!

Dr.Bob - 11-10-2016 at 07:23

I can make a 29/42 setup for nearly any budget, I have found several boxes of it, and they include nearly everything. But the basic kit includes a few flasks 250 - 1000 ml(most of the 29/42 rbfs are multinecks, but I have a few smaller one necks, 250 and 500 ml), distillation head, claisen, vacuum adapters, gas inlets, stoppers, therm adapter, condenser, Dean Stark, and other bits for $100, then I can add refux condensers, addition funnels, short path dist head, and many other 29/42 accessories, all for less than that their equivalent 24/40 item if you buy the kit. I have enough 29/42 items to make at least 3 or 4 kits if people are interested. This is ideal for larger scale work, from 250 ml up to 5 L. I have a few 1, 2, 3, and 5 L rbfs in 29/42, most are 3 necks, some are 4, some have larger center joints.

Melgar - 31-10-2016 at 15:25

I was having a hard time using the Excel file, because of how many rows corresponded to stuff that wasn't available. So, what I did was select the "Approximate Quantity Available" column, then select a zero value in that column, then sort by that value. It should hide all the rows that don't have zero in that column. Then I just selected them all, deleted them, and then there was a little icon in the "# available" column that let me undo the sort, which put them in their original order, minus the deleted ones.

New file where EVERY LINE corresponds to something available:

Attachment: drbobglassware.xls (60kB)
This file has been downloaded 847 times

Edit: to be clear, this is just for the latest version of the list. It won't be accurate next time Dr.Bob posts a new version. I mostly made it so that I wouldn't constantly be seeing things I want, then seeing "0 available" next to them.

[Edited on 10/31/16 by Melgar]

Dr.Bob - 29-11-2016 at 08:37

I hope everyone had a great Thanksgiving holiday. I wanted to just make a quick post to address a few questions I get a lot. I will be very busy with a few projects the next month or so, but then after mid-Jan, I will make an effort to update my inventory and perhaps have a few sales to help clear out more old stuff. I am losing one of my storage spaces shortly (one of the many projects is to clear it out soon) so I trying to consolidate the remaining glassware and re-inventory it once it is closer to being mostly in one or two spaces.

A few comments, I try to ship the best of whatever I have of things first. So if I had 10 of an item, I ship the best of the 10 first, then the next best items, etc. Once I am down to only a few of something I once had a lot of, the chances are it will be more used, more likely scratched, and maybe chipped or have a broken drop tube (eg, sep funnels). I try to describe that if there are issues, but keep in mind that almost all of this glassware is used unless described as new. Sometimes I sell new as used, but most is used. It will have scratches, may be less than analytically clean, and might have pencil marks (tares are common), labels, or other marks.

And glassware with normal enclosed bubbles, small scratches and chips is fine to use for most uses (not good for diazomethane distillations however, I admit). I have been using very used looking glassware for over 30 years, almost every single piece of glassware I had in undergrad, graduate and the last 5 years is at least a decade old, used every day, and very scratched. It is fine for rotovap, distillations, reactions, etc.

I would not use really scratched stuff for explosives, pressure reactions, hydrogenations, diazomethane reactions, or extremely valuable reactions, but normal scratches are not a problem for everyday chemistry. Some people have thought old rbfs were dangerous under vacuum, but even a high vacuum is only 1 atmosphere, no matter how good your pump is, so that is not a problem for any good quality glass.

Only CRACKS are bad, I do not use or ship any cracked glassware, but even that can be used for some functions. I used a cracked grad. cylinder for years without a problem for simple solvents, but don't send items with cracks to people except as broken items to repair. I do replace or refund things that break in the mail, but I don't wish to take refunds on used glassware only because it had a scratch or bubble in it, almost any used glassware will have some scratches in it, mostly due to stir-bars or washing brushes. So if you want brand new glassware, please buy it brand new, not used. Mine is used, but good or better, except as noted.

[Edited on 29-11-2016 by Dr.Bob]

Phosphor-ing - 9-12-2016 at 14:41

Just received my shipment from Dr.Bob. Merry Christmas to me! Very well packed and easy transaction. I look forward to more purchases in the future.

Justin Blaise - 5-1-2017 at 13:36

Hi Bob,

Would you happen to have any dewars that are looking for a home?

Dr.Bob - 5-1-2017 at 19:13

I have lots of dewar flasks, been meaning to make a list of them, but basically I have every size and shape possible, about 3 boxes of them, from small to large, short and tall, etc.

Just let me know what type you want. I have been cleaning out one of my storage spaces that is no longer available, so I have been backed up a bit, but I hope to be done in the next two weeks, then I can get back to updating the inventory. Some of the stuff I just moved I have not ever sorted through, so I might have some new things, sadly, from the sound of at least one box, also some broken things...

Once I have cleaned out the storage space, I will try to get back to people who might be waiting on me, I apologize for the delays, but I had to moved a couple hundred boxes of books, glassware, and other stuff, and it has been a pain, but almost done. Hope to post some lists of books for adoption soon as well. Lots of old science books.

Dr.Bob - 6-1-2017 at 18:13

Another note, I have been cleaning out some stuff due to my moves, and have gathered 4 working Corning stirring hotplates, model PC-320, all used but they all stir and heat well. I would ask $100 plus $20 shipping costs with the US, they are all 110V models, so not much good elsewhere, plus the shipping is insane overseas for these. If anyone wanted 2, or two nearby people want to save money, I might be able to fit 2 in a large flat rate box, I would have to check. I have a few other older ones I am still working on as well. See link below for what a PC-320 looks like:

http://sibgene.com/index.php/corning-pc-320-stirrer-hotplate...

Justin Blaise - 9-1-2017 at 08:13

I'm looking for some large (~4 L) dewars to replace some casualties in my lab. Have anything that large?

Dr.Bob - 9-1-2017 at 13:12

I have a Pope brand, 14.5" tall, 6" ID, 7"OD (38cm tall, ~15 cm ID, ~18 cm OD). That should be about 3-4 liters in volume. I have two more of them that look very similar to it also.

I would ask $100 each, or do a better deal for two or three, plus only the real shipping costs. Comparable ones are on Ebay from $110-225 plus shipping, which varies a lot from $11-$70

http://www.ebay.com/itm/Pope-Cylindrical-Glass-Aluminum-Dewa...

http://www.ebay.com/itm/Pope-8642-4300ml-Dewar-Shielded-Vacu...

http://www.ebay.com/itm/Chemglass-Dewar-Flask-4300mL-Capacit...

I also have a variety of smaller ones, here is a photo of some of them:

[Edited on 9-1-2017 by Dr.Bob]

Melgar - 9-1-2017 at 14:44

Oh, by the way, I just want to say a public "thank you" to Dr. Bob for putting so much time and care into my order, even though my list of what I wanted was more of a stream of consciousness than a list. (ie, "oh, and I'll take four of those 50 mL RBFs, since they're so cheap. oh wait, I actually have way too many of those, and don't use them very much, never mind. can I get 50 mL erlenmeyers instead, since that way they're less easy to tip over?") He also threw in these amber glass chemical-resistant bottles that have this rubberized stuff on them so that if you put a bunch of them in a bag, they barely make any noise or bang together. Sort of like a built-in cover like they put on wine bottles when you buy several of them from a liquor store. Perfect for storing your expired nitroglycerin! (kidding! kidding!)

I didn't get to use most of it until just recently, but I really love having a 14/20 set. Several times I've dropped stuff on the floor that would have broken for sure if it was in 24/40. I got a 500 mL Erlenmeyer and a 250 mL RBF off eBay for solvent distillations, but considering most of the stuff I do is experimental anyway, better to have a glassware set that can be used to synthesize just enough product to do a few tests on.

Elemental Phosphorus - 31-1-2017 at 07:09

Yet another positive reference for Dr.Bob. Glassware arrived quickly, was cheap and is good quality.

Would you happen to perhaps have a quartz boiling flask (for distilling sulfuric acid drain cleaner)?

[Edited on 31-1-2017 by Elemental Phosphorus]

JJay - 31-1-2017 at 07:50

I've been looking for a quartz distillation flask or a quartz retort. If anyone has one for sale, I'd definitely like to know about it.

[Edited on 31-1-2017 by JJay]

Elemental Phosphorus - 31-1-2017 at 08:14

I hadn't heard of Alfa Quartz, sounds like a good place. Maybe, if distilling sulfuric acid is all you need to do, then I have seen it done in a normal flask. I do not like to take chances with glassware though. High-silicon stainless steel is supposedly resistant to attack by sulfuric acid. Specific grades have been designed for it.
http://www.stainless-steel-world.net/pdf/sswsup1005_duplex_r...
Here's a link to a pdf showing grades of steel usable.

A ceramic high fired clay retort, if made from good pure clay, can also resist strong acids, high temperatures, and is made of silica and alumina, so should be able to resist chemical like silica or alumina.

This is not the thread to discuss sulfuric acid distillation, so I'll stop, but I saw a post of yours saying you wanted a quartz flask for sulfuric acid distillation.

JJay - 31-1-2017 at 08:32

Let's be serious here... I'm not going to use a steel container to prepare lab-grade sulfuric acid. But I'd like to use quartz if anyone has suitable equipment looking for a home.

Dr.Bob - 31-1-2017 at 10:40

I don't have any quartz glassware (as far as I know), the only company that I know that does much quartz work now is Prism Research Glass, which is just down the street, use to use them a lot. Also found M5 Scientific Glassblowing looking in Google, they are also in NC, but I am not familiar with them.

links to both:

www.prismresearchglass.com/
www.m5glassblowing.com/

I am still trying to recover from moving much of my storage space contents recently, so I will be slow to update the list for a while, but I do still have lots of stuff. Hopefully by Mar or April I will have neatened things up some more and can find more items to list. I am also trying to get the final pile of books sorted to give away, I should be ready to ship some of them soon, as that will help clear more space here.

JJay - 31-1-2017 at 11:08

Alfa Quartz out of Donghai has some quartz retorts that look great (they look great online anyway), but they have some hard-driving negotiators who want a lot of money, so I'm not sure what the price is.

Geocachmaster - 31-1-2017 at 11:57

Technical Glass Products, a company from Ohio, sells many fused quartz items. A 100ml 24/40 flask is $86, 250ml is $127, and a 500ml is $130. Not cheap by any means, but it would be nearly impossible to find any quartz RBF's for cheap.

Edit: Bonus that these flasks are not custom, you can just order online.

[Edited on 1/31/2017 by Geocachmaster]

Elemental Phosphorus - 31-1-2017 at 15:53

I get the reluctance to use steel, but those quartz flasks are really not cheap.
Nile Red seemed to do fine with standard borosilicate glass.
Quartz Scientific sells 24/40 quartz boiling flasks in up to 500ml.
One of their 500ml flasks sells for $138.
You mention Alfa as willing to negotiate and their negotiators wanting a lot of money, but they will ask for much more than they expect to get and through some negotiation you should be able to bring price down considerably.

JJay - 31-1-2017 at 16:29

Quote: Originally posted by Elemental Phosphorus

I get the reluctance to use steel, but those quartz flasks are really not cheap.
Nile Red seemed to do fine with standard borosilicate glass.
Quartz Scientific sells 24/40 quartz boiling flasks in up to 500ml.
One of their 500ml flasks sells for $138.
You mention Alfa as willing to negotiate and their negotiators wanting a lot of money, but they will ask for much more than they expect to get and through some negotiation you should be able to bring price down considerably.

I didn't say they were willing to negotiate. Anyway, let's try to keep things on topic.

Justin Blaise - 2-2-2017 at 06:51

Another glowing review for Bob! We ordered several large dewars and NMR tubes. Everything was very well packed and came quickly. Bob is a pleasure to work with and is always very generous with his prices. I don't imagine that anyone needs convincing that Bob is the guy to order from if you are in need of glassware, but if the last 19 pages of great reviews aren't enough, here's one more. Thanks Bob!

Dr.Bob - 8-2-2017 at 20:26

Someone asked me about Rotovap parts, here are some examples of steam ducts and stopcocks that I have.

Alzador - 21-2-2017 at 02:10

Hi!

Would anyone have a hot plate stirrer for sale located in the EU? I can only find shitty ones on ebay for reasonable prices, thought I'd ask here?

Thanks!

ElizabethGreene - 4-3-2017 at 12:08

I got an email from GovDeals today, a Uni in Bloomington Indiana is selling a pallet load of RotoVaps and some other stuff as surplus:

Link: https://www.govdeals.com/index.cfm?fa=Main.Item&itemID=5...

I'd buy the lot, but 500Km is a loong drive each way.

Dr.Bob - 4-3-2017 at 19:35

If anyone wants to buy the lot, I have the glassware and most other pieces to make them whole again. I would be happy to swap glassware for more hardware parts, as the R-111 is my favorite type, and the model I have the most parts for. Being near there would help, as shipping is a pain.

Dr.Bob - 17-3-2017 at 17:00

I have a lot of volumetric pipettes still here, from 1 ml to 50 or 100 ml, literally boxes of them, all mixed up. If anyone is interested in buying an assortment, by the pound, I can make sure it contains some of each size or more of one if you prefer. They are long, thin and fragile, so shipping one is tough, likely would just cram a long box or mailing tube full of them, and presume that a few will break, rather than bubblewrap each individually. I am happy to make a deal, I need to clean out some space.

I also have some various sized Pyrex baking dishes (not sure which are real borosilicate and which aren't, that is a crap shoot) that were used years ago as secondary containment for chemicals and solvents, so not ideal for cooking in, but great for lab work or making a lab lasagna. My space is filling with more books, so I need to clear some glassware. I would sell most dishes for a buck or two, plus shipping, or throw the into any other order free if you pay the extra shipping costs, as they weigh a pound or two.

JJay - 17-3-2017 at 19:03

LoL, I make lab ramen on occasion but I don't think I have ever had a lab lasagna. I definitely need some volumetric pipettes....

Funkerman23 - 15-4-2017 at 20:14

Sorry for dropping off the forum but, would you have any oldershaw or perforated plate fractionating columns available? It feels like I've hit the wall on ebay and glass shops on reasonable columns. I hope all is well in any case.

EssOiEx - 16-4-2017 at 09:27

Man, Dr.Bob, did you come through. Thanks for all the help!

alexleyenda - 19-4-2017 at 05:26

By any chance, anyone have a hot plate stirrer for sale in canada (even better if near montreal) ? Or in the US and is able to ship for a reasonnable price somehow?

DFliyerz - 20-4-2017 at 10:13

Dr. Bob, have you ever considered doing a Google Spreadsheet for your inventory so you can update it without having to upload a new Excel file?

Dr.Bob - 23-4-2017 at 15:33

I have, but then people keep posting to ask i I have updated it lately. Part of the problem is that it needs updating in general, but I have not had much time to do that lately, plus much of my remaining items are still in boxes or are one of a kind items that are hard to describe in a text format. I will try to update it soon, as well as take more photos of the odd things soon.

I may try to put a Google spreadsheet version up if I can get it up to date for a while.

Dr.Bob - 6-5-2017 at 18:12

I have been sorting through some glass serological pipettes for a few orders and found a bunch of used ones recently. I have a number of them in 10, 5, 2, and 1 ml, and some down to 1/2, 1/4, and 1/10 of a ml. They are a mix of brands and styles, but most are similar in each size. Some are disposable type, many are meant for reuse and very good quality.

I also have a number of smaller, class A, single volume pipettes, mostly 1, 2, 5 ml, but many other volumes, including some odd numbers and fractions.

I am happy to gather about 5 of each size, (1, 2, 5, and 10ml) plus a few other ones and a handful of fixed volume ones for $15. They sell on Ebay for anywhere from a few dollars a bundle for the disposable ones to a few dollars each for the good ones. That price seems in line with the ones on Ebay or a little lower, but if you want a specific mix or amount, I can do that as well.

Also, if anyone wants some new glass serological pipettes, I have a few new glass ones in 1, 2, 5, and 10 ml, but not many, all are loose, not sterile or wrapped/sealed. So not for FDA/GMP/clinical usage.

If someone wants a bunch of 1ml ones, there are some cheap on Ebay: (I would buy to resell at this price, but have no extra space or time, maybe someone can do a group purchase.)

http://www.ebay.com/itm/Fisher-Scientific-Serological-Glass-...

JJay - 6-5-2017 at 18:33

I definitely recommend Dr. Bob's class A volumetric pipettes. Also, he has a some great storage containers.

Melgar - 10-5-2017 at 15:27

I could use some clear glass bottles and vials between 25 and 100 mL with caps that aren't going to get leaky any time soon. I know I got a bunch of amber ones from Dr. Bob already, and they're great, if a bit difficult to see inside of. I was about to place an order, and then figured I'd ask here instead.

Dr.Bob - 12-5-2017 at 07:52

I have some 60 clear glass french square bottles with PTFE lined caps as well ($2 each or 3 for $5), plus a few 60 and 120 ml wide mouth bottles with PTFE lined caps (they run $2 each).

Phosphor-ing - 26-5-2017 at 10:38

I just received my second order from Dr.Bob. As a birthday present from me to me.

Great packaging as always and lots of extras! Now where did I leave that million dollars laying around?

Plunkett - 9-6-2017 at 09:03

I received my first order from Dr.Bob, all carefully packaged. 10/10 will buy from again.

tsathoggua1 - 18-6-2017 at 13:08

Anyone happen to have a decent vacuum pump for sale ?

Because mine just kicked the bucket. Well, not entirely certain its permanent yet, but its been searing hot out today, had the vacuum on doing a distillation and buggered it I didn't come back to check on it, turned the vacuum off to make a few adjustments to the setup, since there seemed to be an air leak somewhere, one moment the distillate would start boiling furiously, and the next minute, settle down to a bare few bubbles, and unable to restore the distillation.

Thankfully the compound being distilled has a C=O group, and a bisulfite adduct can be formed instead, although doubtless at the expense of quality/quantity of the end intended compound.

But when I went to start up the pump again, it died on me. Overheated I think, damn thing had gotten nearly too hot to touch.

JJay - 18-6-2017 at 13:52

I need an argon regulator... looks like I'll be placing another order soon....

tsathoggua1 - 19-6-2017 at 21:17

Looks like my pump isn't totally dead. It started up again after a night cooling down, but its prone to overheating now it seems when running for extended times. Will handle filtrations and stripping low-boiling solvents, but distillation of high-boiling compounds is proving too much and it keeps overheating and cutting out.

For the moment, I'll have to try placing a one-way valve in between the vac line and the line to the receiver, vac-grease it and leave an ungreased area for some epoxy or superglue to secure the line splice so I can attempt to pump it down quickly and leave it at low pressure without the pump constantly running.

Still need a new one though. how much do the Ar regulators cost you? and what size? because I can find small ones locally for fairly cheap.

[Edited on 20-6-2017 by tsathoggua1]

JJay - 20-6-2017 at 00:41

I'm not really sure what the best deal is on argon regulator.... Obviously I want one that is suitable for lab use, but I'm not sure that its size really matters.

Dr.Bob - 7-7-2017 at 04:11

I just want to let people know that I am out through the end of the week, so if you are trying to get me, please be patient and I will return emails and take orders as soon as I get back on Monday. I am getting a backlog of emails again, so I apologize, but it is too hard to do much work when I'm traveling.

Dr.Bob - 29-7-2017 at 06:47

I am back from a bit of travel now, and trying to finish catching up on inquiries, so thanks for people's patience.

I just found a few packages of 16 x 150 mm disposal glass culture tubes (aka cheap test tubes).

I have some sealed packages of 250 that I would ask $10 each for, plus shipping. Those would weigh about 9 pounds, so as little as $10 to the east coast or $30+ to the west coast.

Alternatively, I have some open packages, and can sell a bag of 24 tubes for $1 each. Those would cost $4 each postage by first class mail anywhere in the US. Or I can do a box of almost 250 loose tubes in a medium flat rate box anywhere in the US for $15 postage. These may incur some breakage since they would be bulk packed, but still the cheapest way to ship.

If you have other numbers in mind, let me know, and I can figure the postage. I have some other sized test tubes as well, just ask for more information and shipping prices.

rwnmyfr - 30-7-2017 at 09:19

Don't happen to have any 24/40 short vigreaux columns or 2L 2 necked 24/40 RBF or FBFs laying around?

Dr.Bob - 31-7-2017 at 16:58

Unfortunately no short 24/40 vigreaux columns left. Don't have many 24/40 large round bottoms either.

I do have one 24/40 distillation kit, which is mostly complete, but only have a few rbfs, I think I have 100 and 250 ml rbfs, as well a 250 and 500 ml three neck rbfs. It has a distillation head, claisen adapter, straight and curved vacuum adapters, liebig condenser, gas inlet, therm adapter, and a few other parts. I can customize it as much as possible, if you want to modify, swap or add to it.

I do have some 100 and 250 ml flat bottom 24/40 flasks, if anyone is looking for them.

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