Copper in Ancient India c12.s2.8
Copper in Ancient India c12.s2.8
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c12.s2.8
The chemical action that takes place in the processes given in the formulae mentioned above for the extraction of copper from its ores in covered crucibles is apt to be lost in the wilderness of names of various plants which evidently supply the carbon by destructive distillation when heated in covered crucibles. The carbon, borax and the alkali carbonates supply the reducing agents for the conversion of the ores into metallic copper.