shaheerniazi - 26-11-2013 at 03:11
I just melted sodium chloride on my stove by the following method:
Note: The more the oxygen the more the heat!
1. I removed the top of the cooking range to reveal a chamber where in the middle is a small nozzle(the gas comes from here)
2. I lit the gas and it made a noisy jet like a bunsen burner.
3. I put some salt on a spoon and put it i the jet right in the middle of the jet
4. to store the heat I put another spoon right on top of it but upside down.
5. after a few minutes the spoons were glowing and I removed the spoon to see the salt crystals melted and made one rough puddle, they were not melted
so good but it was fine.
after cooling I saw some black crystals what was that?
Dany - 26-11-2013 at 03:29
this blackness seems to me deposit carbon from the heating source. In the absence of sufficient oxygen, incomplete combustion may occur leading to the
formation of black carbon or carbocenous based materials. in some cases organic materials like aromatic compounds may result from incomplete
combustion.
Dany.
[Edited on 26-11-2013 by Dany]
metalresearcher - 26-11-2013 at 09:11
Can also be dissolved metal oxides from the spoon. I don't think it it soot or other carbon forms.unless you use a sooting kerosese burner Metal
oxides dissolve easily in molten salts.
[Edited on 2013-11-26 by metalresearcher]
shaheerniazi - 26-11-2013 at 09:52
Thanks alot guys though the salt on the spoon later dissolved in water leaving only the black soot.