Described a novel method for producing high purity potassium silver cyanide [KAg (CN)2] that uses silver oxide [Ag2O] as an intermediate and crude silver as a silver source (surplus silver from silver nitrate production). To obtain high quality product, the evaporation of water from the KAg (CN)2 solution should be carefully controlled.
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周全法 王琪 刘玉海.氧化银法生产高纯度氰化银钾的研究[J].稀有金属材料与工程,2004,33(5):482~484.[Zhou Quanfa, Wang Qi, Liu Yuhai. Fabrication of High Purity Potassium Silver Cyanide by Silver Oxide Intermediate[J]. Rare Metal Materials and Engineering,2004,33(5):482~484.] DOI：[doi]