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Dr.Bob
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I do have burettes, the 25 and 50 ml ones are in 0.1 incriments, I have one 10 ml one with marks every 0.05 ml. They would be $15 or 2 for $25, the
postage for them can be a little high as they are long and fragile, so they end up in bigger boxes or tubes.
I do have a simple 10 ml dean Stark left in 24/40 (lots left in 14/20 and 29/42 joints), that would be $20.
I have a few addition funnels left in 24/40, 2 in 125 ml (one graduated Ace, ($50), one is not ($45)). one 500 ml ($65)
And I have lots of glass washing bottles, photos and prices are a few pages back I think in this thread.
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Panache
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Mood: Instead of being my deliverance, she had a resemblance to a Kat named Frankenstein
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Dr Bob, do you have any qvf stuff?. Im after a 50l vessel holder. Basically a cast aluminium part contoured to the 50l rb they sell.
Actually do you have list of what you have?
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Dr.Bob
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I do have some jacketed reactors, only a few, mostly 1L and smaller, but a couple of 2 L ones, I think, and one brand new 5L jacketted reacttor, which
I hope to put on ebay soon. They sell for ~$3000 new, but I doubt I wil get near that, so if anyone wants one, let me know. But the 500 and 1000
ml ones I do have about 6 of I think. I also have some sort of 10-12 L fermentation thing, which is a non-jacketted cylinder reactor with about 12
different inlets and joints on top. Still trying to figure out prices for them, but willing to take offers. I have some photos, but need to find
that picture folder again.
Also, I do have some parts and fitting in QVF brands, again, many are single items, odd pieces, and more. But I have glass pipes, elbows and a drain
to build a sep funnel like fixed reactor drain setup. Just have not had time to unpack, photograph and list on Ebay yet.
[Edited on 9-10-2020 by Dr.Bob]
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Dr.Bob
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Also, I just got 12 Qorpak 250 ml narrow mouth, amber bottles with greem PTFE lined caps. I have had 60 and 120 ml ones, and some people wanted
bigger, but I just got some with a trade of some bottles with another member. I have one 1L one left as well, haven;t had 500 ml for a while, but if
enough people wanted some, I could try to find some. Hope everyone is staying well.
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Dr.Bob
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I finally took some photos of some more unusual stir rods. These are 10 mm diam and mostly about 16-20 inches long. I have multiples of most of
these, plus the normal nail head type 10 mm stir rods in several lengths. The all glass ones have 3 or 4 paddles, straight or curved. and have
several types. I would ask $25 each for these, less for multiples. They sell for about $150 new from Chemglass..
https://chemglass.com/stirring-shafts-polished-10mm-three-bl...
https://chemglass.com/stirring-shafts-polished-10mm-four-bla...
https://www.ebay.com/itm/All-Glass-Stirring-Rod-3-Paddles-10...
I had some issues posting this, and could not get it to cro pright, but then it shrunk part while I tried to cut it in half.
 
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arkoma
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Thanks again Dr. Bob!! Got my stirbars today and indeed it is a nice assortment. Pray tell, what is you ebay store called?
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Dr.Bob
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I tried to use researchtrianglebooks but my friend had used it and abandoned it before, so it was locked up. So I use rearchtrianglebooksandmore,
the link is:
https://www.ebay.com/sch/researchtrianglebooksandmore/m.html
I have not had time to list much here, I mostly list the science items I have a lot of, as it is so complex now. Ebay is now requiring a UPC,
manufacturer part number, multiple photos and much more for every item. I also have a few clothing items that I have gotten a while back at a store
closing auction where I wanted a few items but I had to bid on a large lot just to get a few shirts. I went to one many yeara ago and got a bunch
of nice Nike shirts for $5 each, so I sold those as well, but I occasionally find similar deals now. If anyone wants anything there, I can offer a
much better price directly through paypal, as Ebay adds 15% to the entire puchase, including postage, so it ened up costing about 25more fees, both
are way too high now.
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Dr.Bob
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Going to try a few more photos. I just assembled a Buchi Rotovap R111 for someone recently, and I have another one, almost identical almost finished
as well. I sold the last one for about $800, but I can adapt or build one for almost any variation, dry ice condenser, complex receiver (allows
draining it while running), and I have a few heads. I even have steam ducts for 29/42 as well as 24/40. I also have various glassware options,
sizes, and bump bulbs, etc. I may list one on Ebay eventually, but as stated above, that raises the price by about 20% almost immediately. So if
anyone if interested in a complete Rotovap or parts and pieces, I have quite a few left. I also have some older motors which could be used to build
a simpler Rotovap for less.
[Edited on 14-10-2020 by Dr.Bob]
 
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Texium
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How much for a dry ice condenser alone?
I don't know why I'm even asking when I don't have time to set up a lab right now...
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Dr.Bob
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The complete dry ice condenser with stopcock I would ask about $150 to $200 for, depending on exactly which type and if you want the receeiver and
clamp or threaded coupler or seal. They go for $400-800 on Ebay.
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arkoma
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Because we just can't help it...............
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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Dr.Bob
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Anybody have a use for a glass tube, about 24" long, 2" ID, 2 3/16" OD, (~51 mm ID, 56 mm OD, wall about 2 mm thick. Not quartz, based on UV
absroance, I assume it is Pyrex/borosilicate, but not sure. It appears to have been part of some chromatographic system maybe, or might be intended
as a reactor tube, but it is possible that it was just some glass plumbing (used to be used in many labs to resist acids and solvents) of some sort as
well. There are no flanges or joints at the end, it is just cut smooth and firepolished slightly. I might have a few of these, but just found one
for sure, think I have seen others in the pile.
I am happy to give it to anyone in the US who will pay the postage (about 3 pounds inside a tube, more if shipped in a better padded box). That
could be as little as $10 or up to $20 to Cal. Or I can add it to any other order for the additional shipping. I have so many odd things like
this that I just don't know what to do with them. if I had time to unpack, photograph and list them it would be great, but I barely have time to do
much lately, so just trying to clean up loose items that were packed in boxes that I have almost emptired otherwise. I have many loose items like
that that are just hard to describe or sell.
Also just found a 500 ml round bottom flask in mint condition with three necks, the center is 34/45, the two sicde are both 29/42, ideal for anyone
who already has some 29/42 glassware. I'd only ask $10, and it is like new. I still have lots of various all 29/42 rbfs, mostly 3 necks, from 100
to 1000 ml, they all sell for 24/40 price.
[Edited on 16-10-2020 by Dr.Bob]
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Texium
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Do you have 29/42 to 24/40 adapters? (I don’t need them, but if you do, it might make it easier to sell off some of those flasks).
Don’t have a use for that tubing either: I had a brief hope that it would fit nicely in my tube furnace, but then I realized that it’s definitely
too fat.
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Morgan
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Quote: Originally posted by Texium (zts16)  | Do you have 29/42 to 24/40 adapters? (I don’t need them, but if you do, it might make it easier to sell off some of those flasks).
Don’t have a use for that tubing either: I had a brief hope that it would fit nicely in my tube furnace, but then I realized that it’s definitely
too fat. |
As an aside, there is this big hunk of quartz for sale at a reasonable price on eBay. While it's just another tube furnace I was wondering if it would
work as a barking dog demonstration too. Sometimes with an intake, shapes like this will rev up or bark quite impressively as feedback builds akin to
a valveless pulsejet. You could also stopper the small end and most probable get it to bark just using methanol.
Anyway just a thought ...
https://www.ebay.com/itm/Fused-Quartz-Glass-Tube-Furnace-app...
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Dr.Bob
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I am running out of those adapters, which is why I figure they are best for someone who already has some 29/42 glassware. I already have some 29/42
rbfs on Ebay, but not a lot of sales. Just figured I would mention it here first. I have lots of 14/20 to 29/42 adapters left, howeverr...
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zenosxr
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I am looking for a 24/40 tube for a vacuum trap, the one I had shattered but head is good. Have anything that would work? (Aspirator vac only).
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Dr.Bob
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Here is the latest list of what is left. I have tried to hide the lines that I am out of, so most of what you will see if what I actually have left.
I may have stuff not on the list, but should have most of what is listed now. Thanks again for the great interest from Science Madness users.
Attachment: Glassware Inventory Nov 2020.xls (97kB)
This file has been downloaded 570 times
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flakestoday
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Just want to make a quick post thanking Dr Bob - I have ordered glassware through him twice, and both times couldn't have gone more smoothly. Great
packaging (even had some extra bottles and misc labware thrown into one of the orders) and everything was in great condition.
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Dr.Bob
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People keep asking me for photos of items, so I have compiled a list of photos that are already posted.
I have many more, but it takes a bit of work to upload them (many are too big or too small), but I can upload more photos if there are particular
groups of items people want to see. I still have many items not listed yet anywhere, but keep trying to catalog and list another box each week or
so. Examples of things not yet well cataloged are pippetors, 96 well plates, vial racks, adapters (rg 14/20 to 24/40), stoppers, rotovap parts, and
much more. I also still have some 24/40 and 29/42 odd stuff not yet photographed.
The list below shows the page of the thread and what photos are in that page. I left out the photos of things that are all sold already like large
rbfs and stirplates. You can either select that page by clicking on the page in the Page selector at the top or bottom left (eg Pages 1 2 3 ... 26)
or just edit the URL to be the page number at the end of the web address, eg the right side of the line below:
http: // www.sciencemadness.org/ talk/ viewthread.php?tid=15667&page=26
Thread Page
3 - 14/20 odd pieces - condensers, adapters, addition funnels, etc
4 - some examples of 29/42 glassware - I have much , much more left.
5 - 24/40 odd pieces - Dean Starks (mostly gone), resin vessels, vial and tt racks, TLC chambers, etc
6 - rotovap condensers, vacuum traps, flash columns, odd fraction collectors
7 - 24/40 claisens, 19/22 kit, more traps, 24/40 dewar condensers (some gone)
8 - 47mm membrane filtration kit (I have many more of these in many variations)
9 - many filter frits, 14/20 various pieces, bits, and odd fittings, dist heads, dist. fraction collector
10 - Dewars and more dewars
11 - Thermometers and thermocouples
12 - Still heads, more dewars, condensers, 14/20 pieces
13 - 14/20 glasssware
15 - 24/40 condensers (some sold now), still heads, vacuum traps, sep funnels, dewars
16 - more complex rotovap condensers -
17 - flash columns, distillation heads, list of some free books
18 - glass dish containers
19 - More dewars
20 - Rotovap parts
21 - jacketed reactors, rbf with drain
23 - solid addition funnels, gas washing bottles, 19/22 kits (one is sold)
24 - small sep funnels
25 - Schlenk stuff, older and odd glassware, non-eq. addition funnels
26 - Odd Stir shafts, complete rotovap
[Edited on 14-11-2020 by Dr.Bob]
[Edited on 14-11-2020 by Dr.Bob]
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Dr.Bob
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I am gathering together a few 24/40 distillation kits for two people right now, and while I am doing it, I am trying to put together about 3 more kits
while I am doing this, as that will use many of the remaiing parts that I have left. I will still have some 24/40 parts, fittings, and condensers,
but likely won't have enough to make full kits after these kits. I also still have lots of more complex still heads, custom pieces, adapters of all
types, and much more. I may try to post some photos once the kits are done, both of them, and of the remaining items.
I am out of most large 24/40 rb flasks, so they will only have a few smaller flasks (likely 50 and 100 ml, maybe larger), but would include a 3 way
dist head, curved vacuum adapter, claisen adapter, condenser (west or liebig is what I have the most of), a stopper, glass inlet, 2 keck clips, and
then an assortment of other items. I can then add more items as desired as well as some bonus items that may vary. If you are interested, please
let me know and I will let you know once they are ready, as well as can check for any additions you might want.
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Dr.Bob
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Just found a box with a few more larger sized 24/40 addition funnels in 250, 500, and I think 1000 ml sizes. I'm still checking them out and cleaning
and testing them, but if you had asked me for one, please let me know if you want one, and I will give you first dibs. I know a few people asked be
about them recently, and I was about out, but just found these while looking for some other items. I also still have lots in 29/42 as well and some
smaller ones in 14/20, mostly 10, 25, and 50/60 ml ones. Also just found a nice 4 L erlenmeyer if anyone was looking for one.
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Dr.Bob
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Anyone want a 1975 CRC handbook of Chemistry and Physics? Free with postage. I have a growing pile of old science books to clear out, so if you
are looking for any chemistry or science books, please send me a rough idea of topics or list of subjects/titles and I can try to find you a box of
them for the postage, which is roughly $3 plus $0.50 per pound for books. I have a box full of math books, lots of chemistry books, and many
toxicology/carcinogeniesis/safety and related books. I sent one person a whole box of chemistry books for about $9 in postage. If you will be in
NC anytime, I will fill your car with them...
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valeg96
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| Quote: Originally posted by Dr.Bob | | Anyone want a 1975 CRC handbook of Chemistry and Physics? Free with postage. I have a growing pile of old science books to clear out, so if you
are looking for any chemistry or science books, please send me a rough idea of topics or list of subjects/titles and I can try to find you a box of
them for the postage, which is roughly $3 plus $0.50 per pound for books. I have a box full of math books, lots of chemistry books, and many
toxicology/carcinogeniesis/safety and related books. I sent one person a whole box of chemistry books for about $9 in postage. If you will be in
NC anytime, I will fill your car with them... |
I'd take them without second thought, but I'm based in Europe, so unless you can find a way to ship them here, I don't know ...
[Edited on 1-1-2021 by valeg96]
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Dr.Bob
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Yes, this is US only. I have had a growing issue shipping nearly anything internationally, so I am only doing US sales and shipping right now.
Covid, politics, and rising prices have made international postage insane.
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Dr.Bob
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I wanted to let people know that I have been tied up with some family medical issues (not covid, but just about as bad) the last few weeks, so I
apoligize if I have left anyone waiting for answers on emails or u2us.
I just got a few orders mostly ready, finihsed or packed, so I want to try to finish any remaining requests or queries that I may have let slide over
the last month or so. With covid, having any medical issue is a diaster right now, so dealing with it has barely allowed me to keep up with my day
job, much less my other tasks. So sorry if I have left anyone hanging, I think I have caught up with most, but if not, please send me a u2u or an
email and I will try to finish the process. I always prioritize paid orders, so I think I have shipped all paid orders pretty well, but some people
had asked me about various things and I may not have answered all in a timely way, so I am sorry.
I just hope that this nightmare (covid) gets controlled soon, so that we can all get back to dealing with the normal stress of staying alive and well,
which was already mor than enough stress for most of us.
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