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ethanol purification by aluminum ?
[quote]
I got 600-700ml ethanol out of 1L spiritus, which costs about 1,50 euro's, very economical ... |
26-10-2008 at 15:07
by: vulture |
Concentrating H2O2
Not to mention the fact that, unless it is analytic grade, sodium sulfate will contain traces of tra ... |
26-10-2008 at 13:00
by: vulture |
Health risks CCl4
[quote]
Being exposed to benzene for 10 times[/quote]
Everybody who's driving a gasoline powered ... |
26-10-2008 at 12:52
by: vulture |
Nomograph application
The exact answer is 212.7 degrees centrigrade. Assuming we were talking about centigrades in the fir ... |
21-10-2008 at 12:13
by: vulture |
Fluoromethanes and fluoro-halomethanes
CBr4 was originally used in the Appel synthesis to make alkylbromides from alcohols. It's now usuall ... |
20-10-2008 at 13:59
by: vulture |
Easy way to measure pH < 0
Do also mind that nitric acid might eat its way through standard (for pool use) pH/conductimeters. |
16-10-2008 at 09:03
by: vulture |
Aldrich Catalog
[quote]
But if I change the order to Fluka there's no hazmat.[/quote]
That's insane, as Fluka is ... |
16-10-2008 at 09:00
by: vulture |
Solvent Stills
Are you sure about DCM and CaH2? Wouldn't that produce carbenes? I remember someone in our lab tryin ... |
15-10-2008 at 12:15
by: vulture |
Reaction scales
Smaller reaction scale usually means losses due to transfer and product sticking to vessels become m ... |
14-10-2008 at 08:54
by: vulture |
Home labs and legal issues
Define chem lab. Why is someone with an interest in chemistry and a few liters of flammable solvent, ... |
13-10-2008 at 13:07
by: vulture |
Strange manganese dioxide (?)
Every sample of MnO2 I've seen (most of them through decomposition of dissolved KMnO4) was dark brow ... |
13-10-2008 at 09:03
by: vulture |
mixing HMnO4 and HClO3 ??
Don't do it. HClO3 is only stable in absence of metal impurities, and with your HMnO4 your introduci ... |
13-10-2008 at 09:01
by: vulture |
"dry" acetone
Will you people get back to the topic at hand or kindly STFU. Panache, your nonsense is getting irri ... |
3-10-2008 at 15:13
by: vulture |
New lab should be in next week...
Why did you paint it like that? Some dull camouflage green and it would have vanished into the backg ... |
2-10-2008 at 12:53
by: vulture |
sulfonylchloride to thiol
Thiophenols smell like hell, concentrated stuff will make you want to vomit, totally not like gasoli ... |
2-10-2008 at 12:48
by: vulture |
sulfonylchloride to thiol
[quote]
If your question is on the feasibility of the 1H NMR showing you the purity of the product ... |
1-10-2008 at 10:00
by: vulture |
Plastic Chemistry Sets for a Student
Plastic means you're forbidding yourself to do organic chemistry, as most organic solvents will diss ... |
29-9-2008 at 11:44
by: vulture |
The short questions thread (1)
[quote]
You can not literally "swap alkyl chains on alkoxides" but you can do an normal proton exch ... |
27-9-2008 at 04:29
by: vulture |
Difluoroacetic acid
[quote]
but if add the sulfuric , the hydrolysate produce a lot of water , it is difficulity to rem ... |
27-9-2008 at 01:36
by: vulture |
The short questions thread (1)
[quote]
Does anyone have any relevant data on the polymer PPP, or poly(p-phenylene), things like gl ... |
23-9-2008 at 12:51
by: vulture |
What is this? Box holder?
Panache is taking the piss...which he shouldn't unless he wants to be sanctioned ofcourse. |
23-9-2008 at 12:24
by: vulture |
Caution: Wear proper T-shirt
Next time, bring the wife to infect the obnoxious bastard if he really wants proof.
[quote]
2. ... |
16-9-2008 at 13:56
by: vulture |
US Customs New Laptop Measure
FYI, I flew from Amsterdam to Vancouver and back. I had a bag full of electronic gear. NOTHING was c ... |
11-9-2008 at 12:59
by: vulture |
US Customs New Laptop Measure
[quote]
The moral is, stay away from jailbait.[/quote]
Since when is carrying your personal data ... |
11-9-2008 at 12:52
by: vulture |
The Chemical Closet part II
[quote]
Likewise the police have always recruited heavily from ex-military and the Vietnam veterans ... |
11-9-2008 at 11:48
by: vulture |
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