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Sodium Oxide
Na2CO3 begins to decompose at 800 [Celsius] ; the stuff foams then, gets out of the crucible and int ... |
10-4-2009 at 16:15
by: chief |
Reduction of arsenic pentoxide? What is the best method?
Antimony is said to be even more poisonous ..., and can be found in many hardened lead-alloys, eg. t ... |
9-4-2009 at 05:30
by: chief |
Ionisation to cool gas jet
From the atomic physics scale it's just simple: To take off electrons from a atom (i.e. "ionizing it ... |
8-4-2009 at 02:59
by: chief |
extracting Sulphur, Phosphorus and carbon from a dead animal
Phosphorus is done since ages, from the bones. Also much phosphorus comes from the fossile excrement ... |
7-4-2009 at 05:37
by: chief |
Ionisation to cool gas jet
Ionization <--> recombination is a balance system; ionization requires addition of energy, and ... |
7-4-2009 at 05:34
by: chief |
Perchloric acid preparation
But HCl then will yield BaCl2 ; H2SO4 on the contrary will yield _insoluble_ BaSO4, and the liquid p ... |
7-4-2009 at 05:13
by: chief |
Perchloric acid preparation
What about Ba(ClO4)2 with H2SO4 ? This would ppt. very (completely) unsoluble BaSO4 and leave only H ... |
6-4-2009 at 16:35
by: chief |
The lead salts preparation thread!
It's much easier to increase the surface of the lead: Just melting it and letting it drop into water ... |
6-4-2009 at 09:38
by: chief |
The lead salts preparation thread!
A question would be if Pb-chlorate/perchlorate (if formed at all) might be a dangerous primary ... ? ... |
5-4-2009 at 05:59
by: chief |
The lead salts preparation thread!
How about using lead directly as anode in a chlorate cell ? Lead chloride as well as chlorate are in ... |
5-4-2009 at 05:09
by: chief |
tin salts thread
If tin wouldn't dissolve when used as anode it would be a perfect one. But surely it isn't ... ; tha ... |
5-4-2009 at 04:52
by: chief |
ClO2 from H2SO4 + NaCl
The stuff is conc. solution of 50% NaCl/ 50% NaClO3, which I confirmed microscopically, by the index ... |
3-4-2009 at 14:32
by: chief |
reactions that emit radiation
There are chemical reactions which mit electromagnetic radiation: Well known are chemical lasers, th ... |
3-4-2009 at 07:37
by: chief |
ClO2 from H2SO4 + NaCl
I tried it: Conc. brine directly from electrolysis, HCl (together 100 ml), given into 400 ml of medi ... |
3-4-2009 at 06:57
by: chief |
inkjet printable Nanoink
Cool, conductive nano-silver ... ; but the inkjet can only print micro, right ?
With a 70%-silve ... |
31-3-2009 at 17:34
by: chief |
Electrolytic Alloy Deposition
This usually is done by variation of the voltage, and in water-solution baths. Eg. bronze may be dep ... |
31-3-2009 at 07:55
by: chief |
Parrafin
I did this when I was a kid and it works quite well ; but during class it was more practical to use ... |
29-3-2009 at 04:27
by: chief |
Special (hypothetical) materials by Damascus-sword-like layer-creation
As long as it's about the ancient "asian races" beeing superior (which might be seen as some sort of ... |
29-3-2009 at 04:23
by: chief |
Special (hypothetical) materials by Damascus-sword-like layer-creation
Eg. here is an idea: Use as carrier-material some sort of paraffine or polyethylene, with not too hi ... |
27-3-2009 at 11:34
by: chief |
Special (hypothetical) materials by Damascus-sword-like layer-creation
It doesn't have to be hammered, but can be rolled as well ; and for some interesting optical effects ... |
27-3-2009 at 08:12
by: chief |
ClO2 from H2SO4 + NaCl
If I just want a mild disinfecting solution of the ClO2: Will the reaction occur if eg. 1 l H2O with ... |
27-3-2009 at 05:11
by: chief |
Special (hypothetical) materials by Damascus-sword-like layer-creation
Of course the idea is old, as I mentioned. But the interesting watson-fawkes-calculation from the ot ... |
27-3-2009 at 04:46
by: chief |
ClO2 from H2SO4 + NaCl
"bizarrely shock sensitive" == high or low explosive ?
How does the ClO2 react with Na2CO3 or NaO ... |
26-3-2009 at 06:10
by: chief |
Al2O3
Al2O3 has a optimum of solubility around PH 9 ; but still only very slightly soluble. A very fine po ... |
25-3-2009 at 16:06
by: chief |
Special (hypothetical) materials by Damascus-sword-like layer-creation
As inspired by the "sword-forging"- thread here the following idea:
2 or more materials (ductile) ... |
25-3-2009 at 10:18
by: chief |
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