Potassium chromithiocyanate

An orange-coloured precipitate of m-dithiocyanato-diethyiene-diamino-chromic thiocyanate, [Cr en2(SCN)2](SCN), is produced on warming an aqueous solution of the salt with potassium thiocyanate, and a sparingly soluble chromithiocyanate, [Cr en2(H402)Br]3[Cr(SCN)6]. 2H20, is precipitated on mixing a freshly prepared aqueous solution of the bromide with potassium chromithiocyanate. It crystallises in violet-red transparent needles which are almost insoluble in water and decompose on exposure to light.2... 

Lead Chromithiocyanate.—The normal salt has not been obtained. The addition of the potassium salt to a solution of lead acetate gives a... 

Mineral acid solutions of bismuth salts react with potassium chromithio-cyanate K8[Cr(CNS)g] to give insoluble brick-red bismuth chromithiocyanate. 

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