3[Pd(NH3)2Cl2] + 12HCl + 2HNO3 → 3(NH4)2[PdCl6] + 2NO + 4H2O
Dichloridodiamminepalladium(II) react with hydrogen chloride and nitric acid to produce ammonium hexachloridopalladate(IV), nitrogen and water. Hydrogen chloride and nitric acid - concentrated solutions.