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Safety equipment
depends on what you're doing; fume hood, emergency shower, blast barriers,atropine, ...
3-8-2013 at 17:31
by: ElectroWin
Platinum Group Metal extraction from Galena ore
[rquote=294205&tid=24036&author=froot]Something's wrong with that analysis, adds up to 100,4 ...
3-8-2013 at 11:49
by: ElectroWin
Copper Cathode Electrolysis
[rquote=294300&tid=25430&author=Mitchell] I am running nine volts by one amp via a wall tran ...
1-8-2013 at 10:34
by: ElectroWin
Urea is not hydrolyzing in Ca(OH)2..
the usual reason is you need to put some heat under this.
try heating this up to around boiling tem ...
1-8-2013 at 08:33
by: ElectroWin
Cheap Aluminum
Most Al foil is only perhaps 99%. the remainder being things like silicon, and other stuff.

30-7-2013 at 17:43
by: ElectroWin
What kind of vacuum pump is suitable for a 24/40 setup?
24/40 is one of several standard tapers for ground glass joints for chemistry, see
http://en.wikipe ...
30-7-2013 at 11:28
by: ElectroWin
DIY propane furnace
while very nice, the method in the video makes a rather small sized forge; i suggest upsizing this, ...
30-7-2013 at 11:07
by: ElectroWin
Platinum Group Metal extraction from Galena ore
ok, interesting! and not so far off topic. the company is Veolia, who announced a plan circa 2011 an ...
30-7-2013 at 10:52
by: ElectroWin
Looking over the border: EU-Regulations
[rquote=292600&tid=23212&author=chemcam]Electro, umm, your logic say t ...
30-7-2013 at 10:35
by: ElectroWin
CaSO4 > Ca2S > SO2?
the problem with SO3 is that you might also want ...
30-7-2013 at 10:21
by: ElectroWin
Preparation of Sodium Nitrite NaNO2
if you needed food grade nitrite, dont use the lead process
27-7-2013 at 15:40
by: ElectroWin
Electrolysis of copper in weak sulfuric acid
your calculation of current density seems correct; the value works out to be quite high, though.
22 ...
27-7-2013 at 15:30
by: ElectroWin
How to calculate time required for electrolysis until completion
[rquote=293857&tid=25343&author=Random]For example if I have battery 9V 200mA and electrolys ...
27-7-2013 at 12:51
by: ElectroWin
glassware for sale or trade
what city do you live in?
27-7-2013 at 12:36
by: ElectroWin
The Short Questions Thread (4)
Aluminum is amphoteric, dissolving in either acids or bases; so beware the pH of what you're cooking ...
27-7-2013 at 12:34
by: ElectroWin
Strange Fast Rusting
i kept some 31% HCl in my bathroom and it corroded the chrome plating on the tap, to bright green,
27-7-2013 at 10:43
by: ElectroWin
Electrolysis of copper in weak sulfuric acid
check the MSDS for the H2SO4 product you have; I am guessing you mistook the smell. it's SO2 gas, co ...
27-7-2013 at 10:40
by: ElectroWin
sulfuric acid
well, you can use H2SO4 to make other acids

you can get some bone ash and have the H2SO4 attack t ...
26-7-2013 at 09:15
by: ElectroWin
Drying IPA - easiest method
[rquote=293698&tid=13680&author=Rich_Insane]I use sodium hydroxide to dry my isopropanol.... ...
25-7-2013 at 14:14
by: ElectroWin
DIY latex paint stripper ideas?
application of trisodium phosphate is the traditional prep before painting; i dont think it strips t ...
25-7-2013 at 08:50
by: ElectroWin
Securing Sciencemadness: understanding the threat model
[rquote=293652&tid=25296&author=froot]The more you try conceal yourself the more of a curios ...
25-7-2013 at 08:36
by: ElectroWin
CaSO4 > Ca2S > SO2?
the reaction requires extreme heat, yellow-to-white hot if i recall correctly:

CaSO4 + 2C --> ...
25-7-2013 at 08:30
by: ElectroWin
Copper plating stainless steel...
btw, my understanding of the reason why you want copper is, that some mashes have pectins in them, w ...
23-7-2013 at 10:41
by: ElectroWin
Ethyl acetate synthesis and mushroom extraction
perhaps you could ignore whether the H2SO4 is food-safe, if you distill the product?

i have a bot ...
22-7-2013 at 16:59
by: ElectroWin
Identifying wires of an old electric motor
AC pulse leads to buzzing, yes. dont do that.
reversing polarity will make the shaft turn the oppo ...
22-7-2013 at 16:32
by: ElectroWin
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