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Dissolving Gold with Chlorine gas
"Hmm, I want gold chloride. Well, I've got gold, and I've got chlorine..." What could be more logi ... |
9-3-2013 at 09:37
by: 12AX7 |
O3 from Cr?
You also want to avoid volatile metals (Mg, Zn, and alloys containing them, like brass and most bron ... |
9-3-2013 at 09:30
by: 12AX7 |
Getting zinc from sodium zincate
Supposedly, zinc can be electroplated from such a solution.
All I've ever gotten was dendrites, s ... |
3-3-2013 at 10:31
by: 12AX7 |
O3 from Cr?
The UV from arcs is notorious for producing ozone. Occam's razor!
Tim |
3-3-2013 at 10:17
by: 12AX7 |
The lead salts preparation thread!
Do you mean Pb(II) or Pb(IV)? And what are you starting exactly?
Lead doesn't have a +3 (unless ... |
2-3-2013 at 14:40
by: 12AX7 |
Ferrous sulphate...unexpected precipitate
As I recall, I got a brownish suspension (not solution) from dissolving assorted steel in acid. The ... |
2-3-2013 at 14:27
by: 12AX7 |
Suitable test tubes for use with 48% HF
Curious, I've seen video of HF with SiO2 boiling from reaction heat -- the reaction itself, of cours ... |
10-2-2013 at 13:51
by: 12AX7 |
ph of NaOCl made through electrolysis of NaCl brine
Hmm, I would think they add the NaOH first (to achieve a pH 10 or higher) before electrolysis.
Na ... |
26-1-2013 at 16:30
by: 12AX7 |
Reversible DC PS plans.
I once built this,
http://www.seventransistorlabs.com/PWM_Generator.pdf
although I took apart my e ... |
25-1-2013 at 19:16
by: 12AX7 |
Extraction of HAuCl4 With Ether
"The plural of 'anecdote' is 'anecdotes', not 'data'"
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25-1-2013 at 18:57
by: 12AX7 |
CuCl2 for friedel crafts
I hypothesized about that earlier, but I don't know if it will chlorinate. Evidently not! Fe(OH)3 ... |
21-1-2013 at 16:26
by: 12AX7 |
Cork resistence to HCl and GAA vapours?
Just for 24 hours wouldn't be a problem, but it's not a permanent solution by any means, and it's no ... |
21-1-2013 at 16:23
by: 12AX7 |
Separation of copper sulfate and sodium sulfate?
Assuming you've neutralized the pH (which should be around 4 or 5, I would guess), so there's no exc ... |
20-1-2013 at 15:02
by: 12AX7 |
Ferrofluid Project
hmm, I wouldn't think it would conduct -- the particles are coated in surfactant, or at least, are s ... |
20-1-2013 at 14:51
by: 12AX7 |
CuCl2 for friedel crafts
Is it not sufficient to suspend a small amount of Fe2O3 or, better, Fe filings, in the solution? Fe ... |
20-1-2013 at 13:46
by: 12AX7 |
Extraction of HAuCl4 With Ether
Leaving it out in the sun for a little while is no guarantee of decomposition. Indeed, to quantitat ... |
20-1-2013 at 13:43
by: 12AX7 |
Suitable test tubes for use with 48% HF
Right, not glass, a ductile-brittle transition. I've seen it in consumer packaging before; lab bott ... |
20-1-2013 at 13:37
by: 12AX7 |
Suitable test tubes for use with 48% HF
Just to modify that, however, PP has a glass transition temperature around room temperature, so you ... |
20-1-2013 at 08:09
by: 12AX7 |
Making Sodium Hydroxide (lye) ??
That's what I thought -- ferrate(VI) is so difficult to create, and so unstable, that it can't possi ... |
20-1-2013 at 08:06
by: 12AX7 |
Making Sodium Hydroxide (lye) ??
[rquote=272137&tid=5673&author=S.C. Wack]Use the hypochlorite to make ferrate...
An old pro ... |
19-1-2013 at 15:18
by: 12AX7 |
Extraction of HAuCl4 With Ether
Nah, he means removing the unspent nitric acid in the aqua regia before reducing -- otherwise the re ... |
19-1-2013 at 12:21
by: 12AX7 |
Acid Etching Metals
I've used HCl + CuCl2 + NaClO3 numerous times for etching circuit boards. The chlorate must be adde ... |
18-1-2013 at 11:34
by: 12AX7 |
The ScienceMadness Appreciation Thread
Agreed. I try to provide helpful replies while directing towards resources. UTFSE doesn't help any ... |
18-1-2013 at 07:32
by: 12AX7 |
Extraction of HAuCl4 With Ether
Impact sensitivity can occur in the presence of organic peroxides, which ether naturally forms over ... |
18-1-2013 at 06:52
by: 12AX7 |
Impure ZnCO3?
Not sure about Cd, but Fe(II), Mg, Mn and others will form a solid solution -- recrystallization won ... |
18-1-2013 at 06:48
by: 12AX7 |
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