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Why are organic compounds more vulnerable to oxidation in alkaline solution?
Know anything about the Lewis octet rule and resonance structures?
Phenol is quite stable all alo ... |
17-1-2013 at 17:48
by: 12AX7 |
Impure ZnCO3?
Well... if nothing else, they have no reason to put junk in them. Just commercial grade zinc, which ... |
17-1-2013 at 17:41
by: 12AX7 |
Impure ZnCO3?
[rquote=271729&tid=23059&author=OctanitroC]
12AX7: for slower addition of the carbonate, sh ... |
16-1-2013 at 18:14
by: 12AX7 |
Impure ZnCO3?
Burning is a process which generally occurs well over 300C. The edges, light and powdery with their ... |
15-1-2013 at 19:37
by: 12AX7 |
Sodium metal from alternate salts?
For Na2O to remain, you'd need to eliminate...
2 H3CCOONa = Na2O + (C4H6O3)
And for Na2CO3,
... |
12-1-2013 at 07:57
by: 12AX7 |
Extraction of beryllium from beryl
Apparently beryl expands very little indeed, ~2.7 ppm/C, on par with borosilicate. It's probably ev ... |
10-1-2013 at 04:01
by: 12AX7 |
Cracks disappearing
As "liquid between sheets" goes, there's a certain grain of truth to that, just not at this temperat ... |
8-1-2013 at 17:22
by: 12AX7 |
Urea pyrolysis
There's a protein assay reaction, I believe using concentrated sulfuric acid to digest protein into ... |
8-1-2013 at 17:06
by: 12AX7 |
Advice on High-temperature experiments without lab furnace wanted
There are only two practical ways of achieving 2500C in a lab setup (i.e., without spending kilobuck ... |
8-1-2013 at 16:51
by: 12AX7 |
aluminum resistant to nitric and sulfuric acid mixture
Once upon a time, lacking a distillation apparatus, I placed sulfuric acid and ammonium nitrate in t ... |
7-1-2013 at 01:57
by: 12AX7 |
Cracks disappearing
In principle, a crack could reseat itself -- the molecules are still there, grasping for electrons, ... |
6-1-2013 at 14:27
by: 12AX7 |
Scratch thy nose
I would think the shoulder is an unlikely location for splashes to collect.
If your shoulder is g ... |
6-1-2013 at 14:16
by: 12AX7 |
Anything besides heat that reliably destroys organic compounds?
Hmmm...
- Laser ablation (technically cheating: the plasma pulse is locally very hot)
- Oxidizer ... |
2-1-2013 at 04:45
by: 12AX7 |
Strontium Fulminate Synthesis
[rquote=270425&tid=22902&author=AndersHoveland]
Potassium forms a superoxide, whereas sodiu ... |
2-1-2013 at 04:34
by: 12AX7 |
Sodium hydroxide reacting with hot carbon?
IIRC, orange-hot is sufficient for reaction with steam?
Don't forget that it's in concentrated fo ... |
1-1-2013 at 21:44
by: 12AX7 |
Worth of beryllium and its salts
Regarding ceramic vacuum tubes, I think new production uses alumina. If you find old production wit ... |
1-1-2013 at 11:55
by: 12AX7 |
Sodium hydroxide reacting with hot carbon?
Worst case, sodium is a known product -- reduction usually involves the carbonate and yellow-white ( ... |
1-1-2013 at 11:49
by: 12AX7 |
KClO4 synthesis
Electrolysis does make KOH and Cl2, transiently, but the Cl2 dissolves in water and forms hypochlori ... |
29-12-2012 at 16:36
by: 12AX7 |
Alkali metal synthesis
Oddly enough, MgCl2 isn't favorable -- these methods depend on the stability of MgO (or Al2O3), both ... |
28-12-2012 at 23:59
by: 12AX7 |
Sm down?
[rquote=269911&tid=22870&author=White Yeti]When someone tries to brute force guess access co ... |
28-12-2012 at 23:56
by: 12AX7 |
Ductility and malleability
Note that drawing tends to compress the surface a bit, which helps greatly.
Even so, many metals ... |
28-12-2012 at 23:47
by: 12AX7 |
Sm down?
That's pretty much it... I have an FTP running, set up to accept only secure clients. Every so oft ... |
27-12-2012 at 23:56
by: 12AX7 |
Elemental Na and K in exoplanet's atmosphere?
Most likely they're detecting ionized alkali molecules, such as atomic Na (a familiar bright orange! ... |
23-12-2012 at 17:57
by: 12AX7 |
Artificial Ivory from Potato?
Hmm, doesn't make sense, at least with regards to starch. Acid breaks down polysaccharides, includi ... |
20-12-2012 at 02:36
by: 12AX7 |
Best and worst smelling chemicals?
There are volatile salts, of course; lead acetate smells of acetic acid due to decomposition to the ... |
18-12-2012 at 21:56
by: 12AX7 |
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