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Is there any trick to get stir bars to stay centered and spin on flat bottom flasks? I seem to have a problem in that flat bottomed beakers/flasks aren't really flat bottomed, but conve ... |
25-7-2020 at 15:46 by: CharlieA |
Zn + technical HCl = red precipitate?! Selenium? Looks can be deceiving... |
25-7-2020 at 15:39 by: CharlieA |
How to start organic chemistry? Maybe you could consult a first-year organic chemistry laboratory manual for ideas, and to give you ... |
24-7-2020 at 15:34 by: CharlieA |
Pretty Pictures (2) VS: great pix! great job! |
23-7-2020 at 15:17 by: CharlieA |
What mechanism typically stops a gas evolving reaction reaching "infinite" pressure? If I weren't so lazy, I would make the following calculation. I would assume reacting 1 mole of Al w ... |
20-7-2020 at 16:06 by: CharlieA |
How reactive are gallium and indium in the reactivity series? In general, elements in the same family (vertical column) of the periodic table, which you might enj ... |
20-7-2020 at 15:48 by: CharlieA |
plastic coated glass https://www.usplastic.com/catalog/item.aspx?itemid=32019
These give a better grip and can help co ... |
17-7-2020 at 16:06 by: CharlieA |
Homemade and Repurposed Lab Gear Nifty!!! |
15-7-2020 at 17:30 by: CharlieA |
Homemade and Repurposed Lab Gear Better living through electricity... |
13-7-2020 at 17:08 by: CharlieA |
UK source for stains & microbio stuff Here in the US, I bought similar items from Home Science Tools, a company that caters to the home-sc ... |
12-7-2020 at 17:42 by: CharlieA |
Ways to precipitate sodium ions? If you are just wanting to treat your Na ion waste before discarding it, why not just evaporate the ... |
12-7-2020 at 17:37 by: CharlieA |
Acid problems Some random thoughts: heating too rapidly? no anti-bumping provisions, g. boiling stones? an ebullia ... |
10-7-2020 at 15:26 by: CharlieA |
18K Gold sould I drop it in aqua regia. I hate to say it but your "conscious" was unconscious. I hope I'm wrong, but this smells very strong ... |
8-7-2020 at 16:30 by: CharlieA |
Bad days in the lab or with glassware? I'm just speculating ($5 word for guessing): I would start with the oven at room temperature and rai ... |
6-7-2020 at 17:14 by: CharlieA |
The basics of chemistry - Best Video contest I second Khan academy...it covers a wide variety of subjects, not just chemistry.
Unfortunately, I ... |
6-7-2020 at 16:53 by: CharlieA |
Bad days in the lab or with glassware? [rquote=639926&tid=24908&author=Refinery]I put a fritted filter funnel in an oven in order t ... |
5-7-2020 at 16:26 by: CharlieA |
latest glassware purchase From the looks of the clamp, it looks like it might be multi-functional; perhaps to hold a thermomet ... |
3-7-2020 at 15:57 by: CharlieA |
Question help Whether the C has 3 hydrogens attached or 3 unshared pairs, it can still be sp3 hybridized and there ... |
9-6-2020 at 16:47 by: CharlieA |
Acetone storage? The cheapest 1-gal HDPE jugs might be milk jugs...and you can drink (ugh) the milk first (I use it o ... |
24-5-2020 at 17:44 by: CharlieA |
Porcelain toilet bowl tank - anyone think of any possible uses? I second the flower pot idea. On your front lawn it would certainly be a conversation piece. |
21-5-2020 at 16:20 by: CharlieA |
sassafras extraction from roots - anyone have experience or know yeilds? I'd rather make root beer from sassafras...if I knew how! |
19-5-2020 at 16:35 by: CharlieA |
Synthesis for Hydrogen Peroxide? I'm really confused! Aside from Johnny Windchimes post (and I thank you for that; I needed the remin ... |
13-5-2020 at 16:08 by: CharlieA |
"In Memoriam" Page [rquote=635534&tid=155339&author=Fulmen]I like the idea, just keep in mind that others might ... |
7-5-2020 at 15:40 by: CharlieA |
Dum Question [rquote=635121&tid=155282&author=CharlieA]An old technique to pour liquids from a bottle (on ... |
1-5-2020 at 16:27 by: CharlieA |
Dum Question An old technique to pour liquids from a bottle (one-handed): grasp the open bottle in one hand, and ... |
30-4-2020 at 16:14 by: CharlieA |
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