cyanide-process

cyanide process

noun
a process for extracting gold or silver from ore by dissolving the ore in an alkaline solution of sodium cyanide or potassium cyanide and precipitating the gold or silver from the solution.

Origin:
1885–90

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cyanide process
 
n
Also called: cyaniding a process for recovering gold and silver from ores by treatment with a weak solution of sodium cyanide

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