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Mystery Glassware Identification Thread Some possibilities come to mind:
1 - a seal to keep external air from entering the flask; you calle ... |
3-10-2019 at 17:19 by: CharlieA |
book review: Forensic Investigation of Clandestine Laboratories Mayko, thanks for the insightful/thoughtful review. And thanks to Corrosive Joseph for the link. Now ... |
21-9-2019 at 17:00 by: CharlieA |
Setting Up an Amateur Lab Robert Bruce Thompson and his wife also wrote "Illustrated Guide to Home Biology Experiments." Never ... |
18-9-2019 at 16:53 by: CharlieA |
Setting Up an Amateur Lab In setting up a lab, I've found Robert Bruce Thompson's "Illustrated Guide to Home Chemistry Experim ... |
17-9-2019 at 17:24 by: CharlieA |
synthesis of anthranilic acid Well, I just searched YouTube for "make anthranilic acid", and got more than half a dozen hits. I di ... |
25-8-2019 at 16:12 by: CharlieA |
How do you keep your lab notebook? Five minutes googling laboratory notebooks will give a plethora of papers discussing this subject, i ... |
22-8-2019 at 15:16 by: CharlieA |
UNBELIEVABLY CHEAP microscopes I filed my complaint with ebay following their procedure, and was all prepared to have to wait a cou ... |
28-7-2019 at 16:41 by: CharlieA |
Useful reference books in the lab RedDwarf's favorites are good choices. I like Lange's "Handbook of Chemistry." I have the 15th editi ... |
23-7-2019 at 15:38 by: CharlieA |
Can MgSO4 be used as a drying agent for MeI? I don't understand what dimethyl sulfate has to do with it?
Yes, anhydrous MgSO4 or anhydrous Na2SO ... |
21-7-2019 at 16:55 by: CharlieA |
Which number you like more: 1.99 vs 2.01? If you are doing scientific calculations, it does not matter which you would prefer to occur. It onl ... |
21-7-2019 at 16:33 by: CharlieA |
Tired of reporting spam Really great. New spam is being posted faster than I can delete it. Is there a macro to make reporti ... |
21-7-2019 at 16:24 by: CharlieA |
Mass and Weight Sulaiman: ambitious and very worthwhile project. I remember how pleased I was when I learned to use ... |
18-7-2019 at 16:31 by: CharlieA |
How accurate are solution density measurements? I have used a 10 ml Class A volumetric flask and a balance reading to 1 mg, with decent (for me, any ... |
18-7-2019 at 16:09 by: CharlieA |
Is there a graph/formula of temperature increase vs amount of H2SO4 added to water? @Ubya: Bravo! Thanks for the pdf. I found it a good refresher for long forgotten information!
Charl ... |
7-7-2019 at 17:45 by: CharlieA |
I found that elemental boron is inert to this aggressive chemical bulldozer [rquote=615606&tid=151239&author=Tsjerk]You would think that someone with over 1400 posts wo ... |
18-6-2019 at 17:09 by: CharlieA |
Collecting aquatic critters Microscopists use a drop or so of 1.5% methylcellusolve to slow them down. I might try a drop of (di ... |
10-6-2019 at 16:31 by: CharlieA |
Pottery grade materials purity (NiO and K2Cr2O7) If you know the manufacturer(s) of these compounds, perhaps you can get the MSDS/SDS for them to get ... |
3-6-2019 at 17:04 by: CharlieA |
The antidote to modern chemistry textbooks Contemporary textbooks in chemistry seem have adopted the notion that “more is better”; the book ... |
3-6-2019 at 17:00 by: CharlieA |
Why can't thionyl chloride be used to chlorinate oxalic acid to oxalyl chloride? Test for phosgene from my prior laboratory experience: it smells like new-mown hay. THIS IS NOT A RE ... |
17-5-2019 at 13:07 by: CharlieA |
Sulfur experiment ideas Why is it that a chemistry teacher can't figure out what to do (safely; not too exotically) with the ... |
17-5-2019 at 13:03 by: CharlieA |
Reaction Kinetics @Metacelsus: "Great minds travel the same paths!" |
16-5-2019 at 12:00 by: CharlieA |
Reaction Kinetics Are you "biting off more than you can chew"?
I can offer only a general method; the specific implem ... |
16-5-2019 at 11:57 by: CharlieA |
Organic Building Blocks Alfa's definition of organic building blocks pretty much covers every organic compound known to man. ... |
16-5-2019 at 11:51 by: CharlieA |
Help wanted ... calibrating a 2kg F1 calibration weight. How about calibrating all of your M-class weights to one of them designated as "MSM" (My standard ma ... |
16-5-2019 at 11:40 by: CharlieA |
Liner Alkanes to cycloalkanes I assume "liner" means linear. You apologize for spelling but don't bother to correct it. I think an ... |
16-5-2019 at 11:34 by: CharlieA |
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