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How hard can it be to purify hardware store chems? I found out that hardware store caustic soda is sometimes contaminated with mercury due to the proce ...	9-4-2011 at 08:29 by: cnidocyte
Tragedy In Brazil (Rio School) [rquote=206236&tid=15992&author=quicksilver] In what manner? Could you elaborate a bit? Is ...	9-4-2011 at 07:40 by: cnidocyte
Distilling down to azeotropic composition Thanks. Does the column need to be packed?	9-4-2011 at 07:28 by: cnidocyte
I can't get the biuret test to work I'm trying to test for urea content in instant cold packs which according to whoever replied when I ...	9-4-2011 at 07:23 by: cnidocyte
Tragedy In Brazil (Rio School) I don't know about Charlie Sheen but I have a bit of an idea whats behind school shootings. Students ...	8-4-2011 at 00:48 by: cnidocyte
Distilling down to azeotropic composition Lets say I have a 5% HCl solution and want to concentrate it via distillation. If I distill it once ...	8-4-2011 at 00:29 by: cnidocyte
Troubles crystallizing my homemade Rochelle salt Actually on closer inspection, my Rochelle salt is colourless. I had some serious trouble weighing o ...	22-3-2011 at 14:04 by: cnidocyte
Troubles crystallizing my homemade Rochelle salt I made some Rochelle salt which I'm gonna need for making biuret reagent. I ended up with a big soli ...	22-3-2011 at 12:57 by: cnidocyte
OTC sandmeyer reactants Thanks a lot! I like the idea of making azo compounds with paracetamol. Gonna look into 4-amino benz ...	22-3-2011 at 12:54 by: cnidocyte
OTC sandmeyer reactants Sanymeyer reactions fascinate me and azo dyes are pretty cool but I don't really know any OTC aromat ...	22-3-2011 at 06:57 by: cnidocyte
How to get NaOH from household chemicals ? [rquote=190387&tid=14660&author=metalresearcher]Drain cleaner contains Al snippets which mak ...	18-3-2011 at 11:01 by: cnidocyte
Does potassium bitartrate have an inverse solubility/temperature dependance? [rquote=204494&tid=15802&author=mr.crow]Note: Don't use sciencelab.com for MSDS, they are a ...	18-3-2011 at 10:11 by: cnidocyte
Does potassium bitartrate have an inverse solubility/temperature dependance? Ah right. Thanks. Is it just me or does cream of tartar smell horrific? When a tiny amount of the po ...	17-3-2011 at 06:41 by: cnidocyte
Does potassium bitartrate have an inverse solubility/temperature dependance? On this MSDS for potassium bitartrate http://www.sciencelab.com/msds.php?msdsId=9927703 it says t ...	16-3-2011 at 21:04 by: cnidocyte
Alternative OTC sources for bromine I tried to order from silverprint but they won't ship raw chemicals to Ireland. I ordered some from ...	13-3-2011 at 07:05 by: cnidocyte
Alternative OTC sources for bromine The only bromine sanitisers I can find in the UK/Ireland are either 1-bromo-3-chloro-5,5-dimethylhyd ...	12-3-2011 at 23:39 by: cnidocyte
Alternative OTC sources for bromine Due to a shortage of privately owned swimming pools in my country there are very few swimming pool s ...	12-3-2011 at 21:17 by: cnidocyte
Making biuret reagent The stuff I'm making doesn't seem to be working. I used these instructions: 1. Weigh 1.50 g o ...	1-3-2011 at 13:32 by: cnidocyte
Aquarium nitrite test kit (sulfanilic acid based) Ah right so theres an unlisted amine in solution B. The instructions say to wait a minute but the so ...	1-3-2011 at 12:50 by: cnidocyte
Aquarium nitrite test kit (sulfanilic acid based) I got a nitrite test kit from the pet shop and tested it out on an NaNO2/NaCl solution. The test rea ...	1-3-2011 at 11:31 by: cnidocyte
Dangers of distilling unstable compounds like nitromethane [rquote=202461&tid=15609&author=bahamuth]Why not lower pressure, have distilled litres of th ...	22-2-2011 at 23:24 by: cnidocyte
Making biuret reagent I know what it is, I'm just wondering where its coordination sites are. If potassium bitartrate comp ...	22-2-2011 at 13:06 by: cnidocyte
Dangers of distilling unstable compounds like nitromethane I distilled the majority of the methanol out of nitro fuel containing 25% nitromethane so what I hav ...	22-2-2011 at 11:41 by: cnidocyte
Anti bumping measures I was distilling some methanol out of a mixture containing nitromethane the other day and when I che ...	22-2-2011 at 11:15 by: cnidocyte
Why are pencil sharpners magnesium? What pencil sharpeners are made of magnesium and what percentage of magnesium is in them?	20-2-2011 at 07:45 by: cnidocyte
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