Potassium Thiocyanoplatinite, K₂Pt(CNS)₄

Potassium Thiocyanoplatinite, K₂Pt(CNS)₄, is obtained by crystallisation from mixed solutions of potassium chlorplatinite and thiocyanate. It yields red, hexagonal prisms which are readily soluble in warm water or alcohol, giving an orange-yellow solution.

The Ammonium salt, (NH₄)₂Pt(CNS)₄, has also been prepared by digesting ammonium chlor-platinite with a solution of an alkali thiocyanate until all has dissolved, and allowing to crystallise. It resembles the potassium salt.

The Silver salt, Ag₂Pt(CNS)₄, is known.