cuprous cyanide

noun

a creamy-white, highly poisonous, water-insoluble powder, CuCN, used chiefly in electroplating and in organic synthesis.

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Example Sentences

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In the case of iodine, the substitution is effected by adding a warm solution of potassium iodide to the diazonium solution, no copper or cuprous salt being necessary; whilst for the production of nitriles a solution of potassium cuprous cyanide is used.