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MOT supply for electrolysis
I tested an MOT primary (intact transformer) and found something like 250At saturation (which was 2A ...
11-6-2009 at 19:11
by: 12AX7
Brush shorting VARIAC?
Copper brush? I may just do that, the contact on mine is terrible. Sandpaper probably wouldn't hur ...
11-6-2009 at 19:06
by: 12AX7
Silanes, self-igniting gases
There are no silicides on the Al-Si phase diagram. Perhaps it is possible under certain circumstanc ...
10-6-2009 at 08:57
by: 12AX7
Repairing Infrared Spectrophotometers
TOOBZ!

Eww, all those molded black capacitors -- they're probably going leaky. Fixed a tube TV l ...
6-6-2009 at 03:42
by: 12AX7
Best and worst smelling chemicals?
http://en.wikipedia.org/wiki/Asparagusic_acid
5-6-2009 at 12:23
by: 12AX7
Time to get rid of some chlorate and perchlorate
Yes, I used platinized titanium. I produced a fair quantity of perchlorate, but the anodes did not ...
4-6-2009 at 19:36
by: 12AX7
Subatomic violation of c?`
The probability of the event you propose is vanishingly small. In fact, so small that it will "neve ...
4-6-2009 at 03:41
by: 12AX7
MOT supply for electrolysis
I took this route, filtering ripple with another MOT: cut out the windings and add as many turns of ...
4-6-2009 at 03:16
by: 12AX7
Time to get rid of some chlorate and perchlorate
For sale: my stock of chlorates and perchlorates.

I still have about 20 pounds of NaClO3, 10 poun ...
2-6-2009 at 21:09
by: 12AX7
synthetic corundum
Er, dopants get distributed quite evenly. Rubies? Pffbt, imprecise alchemy, Cr2O3 to 1%. Large si ...
3-2-2009 at 07:28
by: 12AX7
synthetic corundum
I believe synthetic sapphire is made by fusing Al2O3 in a molybdenum crucible (inert atmosphere, ind ...
2-2-2009 at 12:43
by: 12AX7
Power-output-controlling of MW-oven, towards Birkeland-Eyde synthesis
Easy way to tell, if you feel radiant heat (microwaves heat much the same as IR, which is also hazar ...
21-12-2008 at 22:05
by: 12AX7
Crystallization from SuperSat Soln: endo or exo?
Depends on heat of solvation. Salts like sodium chlorate and ammonium nitrate not only dissolve rea ...
18-12-2008 at 13:03
by: 12AX7
copper acetate and copper powder - electrolysis.
Indeed, a successful preparation. Congrats on the beautiful crystals. ;)

Your theory is correct, ...
16-12-2008 at 16:53
by: 12AX7
The short questions thread (1)
My shampoo lists ammonium laureth/lauryl sulfate, polymethacrylamidopropyltrimonium chloride and oth ...
16-12-2008 at 16:47
by: 12AX7
The short questions thread (1)
Phthalimide process.

Phthalic acid or anhydride + ammonia --> phthalimide (or buy phthalimide ...
14-12-2008 at 17:47
by: 12AX7
acetone intollerant substance
Or titanium carbide, or silicon carbide, or hafnium carbide (the highest melting solid), or any othe ...
14-12-2008 at 06:27
by: 12AX7
easiest & most friendly buffer to play with, C6H8O7 or H3PO4 ?
What is C6H8O7 referring to?

Tim
14-12-2008 at 06:25
by: 12AX7
Thoughts On Anodes
Put voltage to it and see if it works!
13-12-2008 at 12:52
by: 12AX7
acetone intollerant substance
Construct the runners out of polished carbide (or carbide coat them).

Tim
13-12-2008 at 12:49
by: 12AX7
X-PRIZE Foundation: Energy and Environment
[quote][i]Originally posted by JohnWW[/i]
The "conventional" mining of lithium is from insoluble Li ...
12-12-2008 at 07:21
by: 12AX7
Brainstorm - For REAL...
Ah but see, it can only read what patterns it is programmed to recognize. I highly doubt it will ev ...
11-12-2008 at 18:29
by: 12AX7
Boron Plastic Shell ?
Boron absorbs neutrons. I'm thinking radiation shield, possibly to protect explosives. It may also ...
11-12-2008 at 13:25
by: 12AX7
acetone intollerant substance
Ah, but what weight? The pressure is much higher (maybe an order of magnitude or two), depending on ...
11-12-2008 at 09:05
by: 12AX7
Safety Reminder: home chemistry and kids
I've never felt any irritation (on solid skin) from HCl or NaOH, though the latter produces consider ...
10-12-2008 at 16:57
by: 12AX7
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