3[Pd(NH3)4]Cl2 + 18HCl + 2HNO3 → 3(NH4)2[PdCl6] + 2NO + 6NH4Cl + 4H2O
Tetraamminepalladium(II) chloride react with hydrogen chloride and nitric acid to produce ammonium hexachloridopalladate(IV), nitric oxide, ammonium chloride and water. Hydrogen chloride and nitric acid - concentrated solutions.