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Elemental Selenium
[quote][i]Originally posted by mrjeffy321[/i]
I need a small amount of elemental Selenium, preferab ... |
30-1-2008 at 12:33
by: -jeffB |
High temperature/solvent resistant adhesive (?)
[quote][i]Originally posted by microcosmicus[/i]
According to what is said elsewhere around here, g ... |
30-1-2008 at 11:51
by: -jeffB |
Scattering of light, Rayleigh scattering
Interesting! Can you do something "between 100 and 600 minutes" to quench the reaction and stabiliz ... |
30-1-2008 at 06:47
by: -jeffB |
Help me choose a cool experiment
Woelen, you have an incredible gift for producing striking, educational and beautiful demonstrations ... |
23-1-2008 at 15:12
by: -jeffB |
Peltier Junctions for electricity ?
[quote][i]Originally posted by noxx[/i]
Hey guys,
I wasn't able to sleep yesterday and I was think ... |
18-1-2008 at 16:50
by: -jeffB |
PC PSU to laboratory PSU
[quote][i]Originally posted by bio2[/i]
I still not sure I understand why the 12V X 27A = 324W on m ... |
18-1-2008 at 10:25
by: -jeffB |
PC PSU to laboratory PSU
[quote][i]Originally posted by bio2[/i]
Here is the link and the complete sentence which is found a ... |
17-1-2008 at 16:07
by: -jeffB |
PC PSU to laboratory PSU
[quote][i]Originally posted by bio2[/i]
Good thing you put in your disclaimer, lol. Read my post ag ... |
17-1-2008 at 13:02
by: -jeffB |
PC PSU to laboratory PSU
If you simply hook up a load between the +12V and +5V outputs, there's no way it's going to work. T ... |
17-1-2008 at 11:07
by: -jeffB |
copper(I)chloride
It's been ages since I tried anything with cuprous compounds, but my go-to reagent for attacking any ... |
17-1-2008 at 06:16
by: -jeffB |
water electrolysis
[quote][i]Originally posted by not_important[/i]
It appears that bio2 has deleted their posts and f ... |
16-1-2008 at 20:06
by: -jeffB |
Exotic thermites & analogs
[quote][i]Originally posted by Norrys[/i]
[quote][i]Ursprünglich verfasst von -jeffB[/i]
Mixing a ... |
16-1-2008 at 17:39
by: -jeffB |
free chemicals, what do with them?
[quote][i]Originally posted by Jor[/i]
Oh i forgot 1 thing.
I could could also get 2x500g magnesiu ... |
16-1-2008 at 13:12
by: -jeffB |
water electrolysis
Yes, the H2/O2 flame is hot. But so is a carbon arc struck from your high-current supply, no? 
... |
16-1-2008 at 10:32
by: -jeffB |
Anybody for nanoscale thermite reactions?
This might belong in a thread to itself, but it certainly qualifies as an "exotic thermite" in [i]my ... |
16-1-2008 at 10:25
by: -jeffB |
water electrolysis
[quote][i]Originally posted by bio2[/i]
How do I understand how 1 Faraday decomposes 2 moles
water ... |
15-1-2008 at 17:36
by: -jeffB |
Old School Potassium
[quote][i]Originally posted by garage chemist[/i]
You could pour out the molten KOH on a metal shee ... |
15-1-2008 at 13:21
by: -jeffB |
Old School Potassium
[quote][i]Originally posted by garage chemist[/i]
If you use KOH, better dehydrate it in a crucible ... |
15-1-2008 at 12:54
by: -jeffB |
water electrolysis
One Faraday of charge will liberate one mole of H2 and one-half mole of O2.
One Faraday per hour, ... |
15-1-2008 at 12:48
by: -jeffB |
Old School Potassium
[quote][i]Originally posted by garage chemist[/i]
Don't forget the distillative method for potassiu ... |
15-1-2008 at 12:07
by: -jeffB |
Sodium with carbon electrodes, or lack thereof
I tried again last night with the carbon planchets, but this time with some sodium hydroxide hand-se ... |
14-1-2008 at 18:02
by: -jeffB |
Baking soda no longer OTC? Laugh? Cry? You decide
[quote][i]Originally posted by JohnWW[/i]
BTW That ban on "three-necked round-bottomed flasks" is ... |
13-1-2008 at 06:34
by: -jeffB |
Old School Potassium
[quote][i]Originally posted by BromicAcid[/i]
I tried it once before in a u-tube to keep the anode ... |
12-1-2008 at 18:59
by: -jeffB |
Looking for photo of supercritical water
Are you sure that's what you want? Supercritical water, water that's [i]above[/i] (rather than near ... |
12-1-2008 at 07:45
by: -jeffB |
How not to be an ambassador for amateur science...
http://episteme.arstechnica.com/eve/forums/a/tpc/f/770002407831/m/955005278831
The fun gets off t ... |
11-1-2008 at 08:19
by: -jeffB |
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