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Making sodium tellurite from tellurium dioxide?
It looks like it should work- at least you will lose the copper and someother metals (iron springs t ... |
17-1-2010 at 11:20
by: unionised |
Science project prompts SD school evacuation
I think the important bit here is "after the vice-principal came to the conclusion that it was a bom ... |
17-1-2010 at 06:56
by: unionised |
The Irish company Steorn builds a pulse motor with no back EMF.
I predict there will be a lot of talk; but very little evidence of any real effect. As len1 pointed ... |
13-1-2010 at 04:18
by: unionised |
Improving thermal conductivity from a hot plate
There's a "cheat" for getting flat bottomed flasks to heat quicker on a hotplate if you are trying t ... |
6-1-2010 at 01:31
by: unionised |
Write-up on making pure BaCl2.2H2O
Just in case Santa didn't bring you an AA machine for Christmas (I guess you were naughty); the clas ... |
6-1-2010 at 01:18
by: unionised |
Total nitrogen determination
Just to let you know.
0.1g of polymer, 5 g of KHSO4, 0.38 g CuSO4, and 6 ml of H2SO4 and heated to ... |
23-11-2009 at 11:48
by: unionised |
Homebrew flowmeter
I'm no artist but I hope I can describe this idea well enough.
You don't need the tube in a variabl ... |
23-11-2009 at 11:36
by: unionised |
Simple measurement of Iodide
I guess it's too late for the OP to still care but why not titrate the I- with Ag+?
http://pubs.acs ... |
16-11-2009 at 11:54
by: unionised |
How come I can smell bleach?
It's a whole lot more likely that you made NaClO3 (s) than NaOCl (s) that way.
Also you are fairl ... |
16-11-2009 at 11:41
by: unionised |
MeCN + H2SO4
The reaction of conc H2SO4 and ACN can be dangerously violent.
It produces a mixture of products- m ... |
3-10-2009 at 10:14
by: unionised |
Pure V from 90% V metal
Vanadium might be amphoteric in most of its oxidation states but I don't think zero is one of them. ... |
13-9-2009 at 07:13
by: unionised |
Solubility of a mixture of isomers
There are two answers because they are the answers to two different questions.
If I take a lot of t ... |
6-9-2009 at 04:45
by: unionised |
Total nitrogen determination
Thanks folks.
One of those reports says you can use acetanilide as a standard which is nice because ... |
5-9-2009 at 11:59
by: unionised |
Total nitrogen determination
Thanks. I will get the library to send me a copy of that paper.
The sample is a foam and I think it ... |
5-9-2009 at 08:35
by: unionised |
Total nitrogen determination
The Lassaigne's saodium fusion test is great but it's nothing like quantitative. I really need to me ... |
3-9-2009 at 13:03
by: unionised |
Total nitrogen determination
At work I have been asked to measure the total nitrogen in something that's mainly polyurethane (bas ... |
3-9-2009 at 10:27
by: unionised |
New meth formula avoids anti-drug laws
What I can't understand is why the press think that method is new.
It's while back that I was looki ... |
26-8-2009 at 11:04
by: unionised |
Halogen Colors
[rquote=159703&tid=12641&author=bfesser]That image looks computer generated.[/rquote]
Are ... |
23-8-2009 at 05:20
by: unionised |
How do you tell methanol from ethanol?
[rquote=160539&tid=12624&author=JohnWW]What about doing an NMR analysis on it? CH3OH only ha ... |
23-8-2009 at 05:10
by: unionised |
DMSO shelf life
DMSO is fairly stable. If the reaction described on that web page had happened to any meaningful ext ... |
16-8-2009 at 07:08
by: unionised |
Methanol -> methanal
I think he has got the wrong polymer of the wrong aldehyde.
If you heat metaldehyde (which is used ... |
15-8-2009 at 05:16
by: unionised |
The taste of salts
" Something else, like sodium sulfate, is maybe half as salty. Simple explanation is probably that s ... |
15-8-2009 at 05:08
by: unionised |
Calcium oxide and alcohols/ethers
[rquote=159676&tid=12655&author=Sedit]But he ment Et2O Tim.
I was under the impression t ... |
13-8-2009 at 10:12
by: unionised |
Demo of old photographic process
I did some holography years ago. I was interested in the DCG because it gives good effects but I nev ... |
4-8-2009 at 12:18
by: unionised |
Demo of old photographic process
Thanks, but the link seems to be down.
Is this the sort of thing you mean?
http://www.holographyfo ... |
3-8-2009 at 12:21
by: unionised |
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