Palladium complex salt and use thereof for adjusting palladium concentration of an electrolytic solution for deposit of palladium or one of its alloys

摘要

A novel complex salt off palladium sulfate and ethylenediamine contains 31 to 41% by weight of palladium and has a molar ratio [SO4]:[Pd] of between 0.9 and 1.15 and a ratio [ethylenediamine ]:[Pd] of between 0.8 and 1.2. The invention further relates to a process for the preparation of this complex salt, and to the use of this complex salt for introducing palladium into an aqueous electrolysis bath of acidic pH for the electrochemical deposition of palladium or one of its alloys, or for adjusting the palladium concentration of such a bath.