Nickel Thiocyanate, Ni(CNS)₂

Nickel Thiocyanate, Ni(CNS)₂, has been obtained in the anhydrous condition as a chocolate-coloured amorphous powder. The hydrated salt, 2Ni(SCN)₂.3H₂O, obtained by dissolving nickel carbonate in thiocyanic acid is a yellowish brown crystalline powder. Double salts with potassium, sodium, and ammonium have been obtained, as have also ammonia derivatives.