K[Pt(C2H4)Cl3] + 4(NH3•H2O) → [Pt(NH3)4]Cl2 + C2H4 + KCl + 4H2O
Potassium trichlorido(ethylene)platinate(II) react with ammonium hydroxide to produce tetraammineplatinum(II) chloride, ethylene, potassium chloride and water. Ammonium hydroxide - concentrated solution.