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单词 Patera process
释义 Patera process
[pǝ`ter·ǝ ´prä·sǝs]
METALLURGY
A method used in the 19th century for extracting silver from ore: the ore was roasted with sodium chloride, a solution of sodium thiosulfate was then added to leach out the silver chloride, and sodium sulfide precipitated the silver as silver sulfide.
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