Washoe


Washoe : A process for extracting silver from sulfide ores. The ore is heated with aqueous sodium chloride in an iron pot. The chloride dissolves the silver and the iron reduces it; addition of mercury gives silver amalgam: 2AgCl + Fe + 2Ag + FeCl2. This is a variation of the Patio and Cazo processes. (Check source for accuracy of chemical formula)
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