Nickel Cobalto-cyanide, Ni₂Co(CN)₆

Nickel Cobalto-cyanide, Ni₂Co(CN)₆, is obtained as a golden precipitate on adding nickel sulphate to a solution of potassium cobalto-cyanide. On drying the salt turns green. It dissolves in excess of the potassium salt, yielding Nickel Potassium Cobalto-cyanide, K₂NiCo(CN)₆.