Palladium(II) sulfate

Palladium(II) sulfate is an inorganic chemical compound with the formula PdSO4. It is a hygroscopic red-brown solid that forms the dihydrate, PdSO4·2H2O.

Preparation and properties
Palladium(II) sulfate is produced by the reaction of palladium metal with a mixture of nitric acid and sulfuric acid. It can also be produced by the reaction of palladium(II) sulfide and oxygen in dimethylformamide.

When anhydrous palladium(II) sulfate absorbs moisture from the air, it forms a greenish-brown dihydrate. The anhydrous form can be regenerated by the heating of the dihydrate at 202 °C.

Anhydrous palladium(II) sulfate decomposes to palladium(II) oxide at 525 °C releasing sulfur trioxide:
 * PdSO4 -> PdO + SO3