Palladium(II) oxide is the inorganic compound of formula PdO. It is the only well characterised oxide of palladium. It is prepared by treating the metal with oxygen. Above about 900 °C, the oxide reverts to palladium metal and oxygen gas. It is not attacked by acids
P 7558 (OTTO) Palladium oxide, ≥99.97% Cas 1314-08-5 - used in the preparation of good optical quality films. It is involved in the preparation of LuPd2O4 , which is used in superconducting materials.