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Unconventional Shaped Charges
Spark test.
14-5-2010 at 13:51
by: 12AX7
How to convert ferrovanadium (82%) in vanadium pentoxide
Mmmm...

Dissolve in sulfuric, filter impurities, base extract and oxidize, filter Fe(OH)3 and imp ...
14-5-2010 at 13:48
by: 12AX7
Ammonia by the haber process--tabletop chemistry
Steel is nitrided by a plasma/ion process. Not much better than Birkeland-Eyde, I'm afraid.

Tim
13-5-2010 at 15:14
by: 12AX7
Uranium
Ridiculously powerful magnets don't do much to aqueous iron...

Tim
13-5-2010 at 15:09
by: 12AX7
AC Refrigerant Questions
Yes, tubing is net size, PIPE is nominal size. The copper pipe used for plumbing is pipe, not tubin ...
12-5-2010 at 21:30
by: 12AX7
extraction and detection of polyacetylene "requesting"
You mean the attachment? I downloaded and opened it fine. (The Google link also works.)

Tim
12-5-2010 at 21:25
by: 12AX7
Uranium
Too bad there's an awful lot of iron and other things in there.

IIRC, nitric is usually used to e ...
11-5-2010 at 18:28
by: 12AX7
The short questions thread (2)
If you dissolve only a small amount, the CO2 may remain in solution. Can you get a pile of the stuf ...
11-5-2010 at 18:23
by: 12AX7
The short questions thread (2)
Copper forms a carbonate complex.

I once tried electrolyzing copper metal in a sodium carbonate s ...
11-5-2010 at 15:39
by: 12AX7
Does Ethanole react with NaClO3-solution ?
Interesting...
So it won't do anything...
But if it does, you get acetic acid...
Then pH drops an ...
7-5-2010 at 14:59
by: 12AX7
nutrient for yast
[rquote=177336&tid=13809&author=Eclectic]Vegimite
[/rquote]

Mmm, cannibalism.
6-5-2010 at 06:39
by: 12AX7
Diluted hydrobromic acid
You will get NaHSO4, not Na2SO4.

Tim
6-5-2010 at 06:36
by: 12AX7
Things to do on a rainy day - intermetallic's
Also, the file has no extension and thinks it's a PDF for some reason.

Tim
4-5-2010 at 06:34
by: 12AX7
Things to do on a rainy day - intermetallic's
Nope! You want to melt the copper first so you are certain it is dissolved. After about 33% alumin ...
3-5-2010 at 20:07
by: 12AX7
Preparing Ferric Chloride (III)
On heating, it releases HCl fumes, and is in general quite corrosive; an excellent complement to bri ...
3-5-2010 at 04:47
by: 12AX7
Preparing Ferric Chloride (III)
Iron dissolved in acid produces no Fe(III), the reduction potential is greater than H+. Indeed, Fe( ...
2-5-2010 at 18:54
by: 12AX7
quick vote: gallium. a good investment?
White LEDs are based on GaN, so arsenic won't be a big deal there. GaN FETs and GaAs and SiGe PHEMT ...
2-5-2010 at 15:12
by: 12AX7
Things to do on a rainy day - intermetallic's
I don't have an Au-Mg phase diagram, but Al-Au shows Al2Au ("aluminum auride") melting at 1330K.

...
2-5-2010 at 11:38
by: 12AX7
4N,3N,2N gallium
2N = 99%, 'N' = "nines". If it's actually 99.99%, they slipped up...is it cheaper?

If it were no ...
1-5-2010 at 20:04
by: 12AX7
hg in lcd
None???
30-4-2010 at 10:21
by: 12AX7
Drain cleaner
Mechanical seperation is easiest. Most types have a flake sort of NaNO3, which is easily blown away ...
29-4-2010 at 18:12
by: 12AX7
Electrolysis power supply
Thank you for an excellent explanation.

Another issue more practical: since a poor power factor c ...
28-4-2010 at 15:43
by: 12AX7
Electrolysis power supply
[rquote=176732&tid=13733&author=densest]I'm curious that you didn't use the OC pin on the ha ...
28-4-2010 at 06:49
by: 12AX7
Insane science projects — Think BIG
Howzabout tacking a sidechain onto EDTA, then bonding that to a larger substrate e.g. polymer beads, ...
28-4-2010 at 06:42
by: 12AX7
Electrolysis power supply
The inverter is always switching, so it is always sending current into the OPT and therefore inducin ...
27-4-2010 at 15:20
by: 12AX7
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