[Pt(NH3)2Cl2] + 4KI + 2H2O
K2[PtI4] + 2(NH3•H2O) + 2KCl
Cis-dichloridodiammineplatinum react with potassium iodide and water to produce potassium tetraiodoplatinate(II), ammonium hydroxide and potassium chloride. Potassium iodide - heated aqueous solution.