Palladous Bromide, PdBr₂

Palladous Bromide, PdBr₂, is produced in small quantity by the action of bromine water upon palladium. It is more easily obtained in bulk by the action of a mixture of hydrobromic and nitric acids upon the metal. The nitrous acid is removed by boiling with excess of hydrobromic acid. Upon evaporation the salt is obtained as a reddish brown mass, insoluble in water, but soluble in aqueous hydrobromic acid 1 and in alcohol. Ammonia converts it into the diammoniate, palladosammine dibromide, PdBr₂.2NH₃.