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Rusting from HCl Bottle
My semi-facetious suggestion: If you need a gallon size glass jug, buy a gallon of table wine. Drink ...
8-12-2018 at 16:06
by: CharlieA
Anyone want to use my lab/equipment/chemicals ?
Sulaiman, that is a very generous offer. I can't take you up on it. I'm in the states and have my ow ...
8-12-2018 at 16:00
by: CharlieA
Organic catalyst international sale: TEMPO and TBAB
My order arrived today in fine shape. And thanks for the nickel "nickel".
Happy Thanksgiving!
Char ...
21-11-2018 at 17:18
by: CharlieA
chalk project prep
MgHSO4 is not a valid chemical formula. Epson salt, magnesium sulfate heptahydrate, is MgSO4.7H2O.
18-11-2018 at 17:02
by: CharlieA
Kilogram Standard
Nuts!!! I just calibrated my balances with the (student, I think) set of brass weights I bought at a ...
17-11-2018 at 17:20
by: CharlieA
Nickel sulfate questions
I thought for electrolysis, the voltage for a reaction was determined by the entities, and the curre ...
15-11-2018 at 17:25
by: CharlieA
Vacuum Aspirator Problems
Ok Sulaimon, you sold me! I just ordered one from ebay-US for ~20USD. I figure at this price, it is ...
13-11-2018 at 17:14
by: CharlieA
Laboratory Equipment Suppliers Help
I don't follow this. At eight times (approximately) the rated pressure the desiccator failed? Would ...
11-11-2018 at 17:32
by: CharlieA
Vacuum Aspirator Problems
I note from the specifications for your aspirator that the maximum vacuum is 420 mm Hg. This is only ...
11-11-2018 at 17:21
by: CharlieA
Lessons Learned
Well said...also, don't leave something being heated. I learned this the hard way on my first indust ...
10-11-2018 at 16:58
by: CharlieA
Homemade and Repurposed Lab Gear
2-11-2018 at 16:22
by: CharlieA
Mystery Glassware Identification Thread
These are flasks used in a Warburg apparatus for tissue culture. One port of the flask connects to a ...
20-10-2018 at 15:33
by: CharlieA
Test Tube Holder
Dr. P, Those are the best yet!
...but I think you have too much time on your hands!:D
19-10-2018 at 15:55
by: CharlieA
Proper scrubbing for a glove box
I like maccone's description of a simple fume hood. Instead of plexiglass, I would substitute clear ...
9-10-2018 at 16:23
by: CharlieA
Melting Point Analysis Old School Way - Thiele Tube
The idea is to measure at least 2 parameters of a substance to identify it. if you are pretty sure o ...
6-10-2018 at 17:45
by: CharlieA
how much volume
So, it is a mixture, what are the components?
26-9-2018 at 15:21
by: CharlieA
JJay - if that's your lab assistant, I don't see how you get anything done. I know I never had a lab ...
22-9-2018 at 15:39
by: CharlieA
Tired of reporting spam
Tonight is especially frustrating...3 pages of posts today, and 2 pages of them are spam. I think wh ...
14-9-2018 at 16:47
by: CharlieA
Lab gadgets
OK; I'm guessing it was a crayon/pencil holder/marker holder. I made some similar (a large flat-bed ...
2-9-2018 at 16:19
by: CharlieA
help with mechanisms
My guess: starting with -NO2 or -NH2 prepare the diazonium salt with NaNO2/HCl and hydrolyze to the ...
2-9-2018 at 16:10
by: CharlieA
Lab gadgets
Neat storage idea! Did you cut the pig with a scroll saw?
1-9-2018 at 17:42
by: CharlieA
diy incubator
Very nice job, aga! Your work is very professionally done! Does your unit have a fan for air circula ...
16-8-2018 at 15:35
by: CharlieA
anyone have experience forming grignards from chlorobenzene
[rquote=529082&tid=87827&author=Sigmatropic]PhCl is chlorobenzene. BnCl is benzyl chloride. ...
15-8-2018 at 17:09
by: CharlieA
anyone have experience forming grignards from chlorobenzene
Aren't PhCl (C6H5CH2Cl) and chlorobenzene (C6H5Cl) two different animals?
13-8-2018 at 15:56
by: CharlieA
I'm inclined to agree with Fulmen.
I would think the top of the siphon tube could be a little highe ...
10-8-2018 at 16:28
by: CharlieA
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