S 0139 (OTTO) Sodium tetrachloropalladate(II), 98% Cas 13820-53-6 - used to prepared palladium nanospheres, hollow nanopheres and hollow AuxPdY alloy nanoparticles.Na2PdCl4 maybe used in the electroless coating on mild steel and to prepare ion associate cetyltrimethylammonium-tetrachloropalladate which is consequently used to modify carbon based electrodes for better sensitivity