Main article: Chromocyanides.   
Hexacyanochromates(II) - compounds of inorganic complex chromocyanic acid H4[Cr(CN)6].

Hexacyanochromates(III) - compounds of inorganic complex chromicyanic acid H3[Cr(CN)6].

Most of metals hexacyanochromates except alkaline ones and ammonia are slightly or insoluble in water.

List of suitable for crystal growing hexacyanochromates is presented below.

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