Reactions
Copper cyanide is insoluble in water but rapidly dissolves in solutions containing CN- to form 2- and 3-, these ions are trigonal planar and tetrahedral respectively. This is in contrast to both silver and gold cyanides which form - ions in solution. The coordination polymer KCu(CN)2 contains - units which link together forming helical anionic chains.
Copper cyanide is also soluble in 0.88 aqueous ammonia, pyridine and N-methylpyrrolidone.
Read more about this topic: Copper(I) Cyanide
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