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Are you going to observe Comet ISON?
I am going to observe it, if there is anything to observe and it is not too faint. |
29-11-2013 at 11:56
by: metalresearcher |
Melting sodium chloride
Can also be dissolved metal oxides from the spoon. I don't think it it soot or other carbon forms.un ... |
26-11-2013 at 09:11
by: metalresearcher |
Synthesis of calcium carbide with electric arc
Woelen is right. Indeed commercial CaC2 releases much more gas when contacted with water. I think lo ... |
25-11-2013 at 09:25
by: metalresearcher |
Synthesis of calcium carbide with electric arc
[rquote=308494&tid=27475&author=bismuthate]Well it's relativly easy to analyze it. Just mix ... |
24-11-2013 at 11:55
by: metalresearcher |
Synthesis of calcium carbide with electric arc
I made CaC2 by arcing lime powder (CaO) and BBQ charcoal and let it react with water. That released ... |
24-11-2013 at 09:23
by: metalresearcher |
Will CaC2 + H2O2 form explosive oxyacetylene ?
[i]Sorry I [url=http://www.sciencemadness.org/talk/viewthread.php?tid=18017]already posted[/url] t ... |
24-11-2013 at 03:05
by: metalresearcher |
HCl + AgNO3 = HNO3 + AgCl : How?
Well it has nothing to do with acid strength. HCl and AgNO3 in an aqueous solution *will* precipitat ... |
18-11-2013 at 03:50
by: metalresearcher |
Electrolyzing NaOH: finally succeeded !
What about using candle wax (paraffin) on top of the lye ?
The paraffin boils @ 370C (according to ... |
15-11-2013 at 13:00
by: metalresearcher |
Electrolyzing NaOH: finally succeeded !
Well, I have tried another run, I was able to collect sodium again but there are a few issues. It is ... |
10-11-2013 at 02:32
by: metalresearcher |
Electrolyzing NaOH: finally succeeded !
Finally I electrolyzed NaOH. The first time with success. In a large stainless steel soup dipper I m ... |
9-11-2013 at 13:34
by: metalresearcher |
Iron spectral color blue: why not in fireworks?
Welding (or arc melting) of steel results in a nice blue arc light which is actually the spectral co ... |
22-10-2013 at 11:27
by: metalresearcher |
KClO3 + candle wax: NO reaction ??
As we all know, KClO3 is a strong oxidizer and should be handled with care when in combination with ... |
11-10-2013 at 12:55
by: metalresearcher |
making nitric acid
Hi,
Maybe this helps, KNO3 +H2SO4 concentrated. I tried it a half year ago.
<iframe width= ... |
3-10-2013 at 11:18
by: metalresearcher |
Sulfuric acid from gypsum
Use KClO3 instead of NaClO3 as the first is much easier to separate due to its low solubility in wat ... |
1-10-2013 at 03:30
by: metalresearcher |
Sulfuric acid from gypsum
Use KClO3 instead of NaClO3 as the first is much easier to separate due to its low solubility in wat ... |
30-9-2013 at 09:03
by: metalresearcher |
Sulfuric acid from gypsum
What about using KClO3 during roasting of the CaS? This will definitely oxidize the SO2 to SO3 . And ... |
28-9-2013 at 07:43
by: metalresearcher |
Sulfuric acid from gypsum
I don't know whether Kanthal is SO2 resistant. But when you put the reactants in a retort then the S ... |
27-9-2013 at 11:39
by: metalresearcher |
Sulfuric acid from gypsum
You mean using porcelain as crucible ? Does that not crack due to temperature changes as it has a po ... |
27-9-2013 at 08:32
by: metalresearcher |
Is it possible to produce calcium metal?
[rquote=290620&tid=24889&author=Polverone]Aluminothermic reduction of calcium oxide in vacuu ... |
24-9-2013 at 12:37
by: metalresearcher |
What is 'acid' and 'base' in metallurgy?
In several publications and websites about metal refining is spoken about 'basic' and 'acid' slags. ... |
19-9-2013 at 08:12
by: metalresearcher |
Manganese Thermite with Lime
Here I did a test using MnO2 with magnesium powder.
It did very well and the resulting black substa ... |
13-9-2013 at 12:44
by: metalresearcher |
Silicon Thermite
Here another attempt to obtain Silicon: using SiO2 + Mg powder.
I now also filmed the post proces ... |
8-9-2013 at 11:24
by: metalresearcher |
Silicon Thermite
The ratios are always by mass. The amount was about 22g altogether.
Here a photo of the results. ... |
6-9-2013 at 11:27
by: metalresearcher |
Silicon Thermite
Anyway I tried the Sulfur method:
9 parts SiO2, 10 parts Al and 12 parts S. It reacted slower and ... |
6-9-2013 at 10:23
by: metalresearcher |
Silicon Thermite
[rquote=297482&tid=25921&author=kafer96] But then you'll have a hard time washing silicon fr ... |
1-9-2013 at 12:57
by: metalresearcher |
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