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How to melt ore particles of gold with chemicals or acids but not by heatingAugust 12, 2008
Hai I am student and currently in a project of obtaining alloy of gold from its ore, I am using aqua regia here. I was told to melt the ore without heating it to 1064.18 dC. Can any one help me how to melt the ore to form in liquid state.
Student - India
August 13, 2008
Hi, Rahil. This sounds like project for a Philosophy of Language course rather than a science course :-)
In science, 'melt' means for a substance to go from solid state to liquid state due to increase in temperature. In Philosophy of Language we talk about phrases like sugar melting (dissolving) into water :-)
Are you trying to get the solid substance to melt into liquid with no application of heat, or are you trying to dissolve the substance into a solvent?
Ted Mooney, P.E. RET
Pine Beach, New Jersey
August 15, 2008
Do a search on the internet for the Thermite Process. It is an old technique used to weld metals together before oxy-acetylene had been invented. The technique is dangerous to carry out, so I will not give details here - if anyone wants to use it, they should do so with great care. By the way - it has been used to extract manganese from its oxides, but NEVER use manganese dioxide - it explodes, as I found out to my dismay!
R&D practical scientist
Chesham, Bucks, UK