SETT ATT PA KEMISKT VEG AVSKALA SKIKT INNEHALLANDE PALLADIUM OCH ATMINSTONE EN AV METALLERNA KOPPAR OCH NICKEL

摘要

Method for chemically stripping plated metals including palladium and at least one of the metals copper and nickel. The plating is submerged into a bath including 20-200 g/l nitric acid, 10-100 g/l hydrogen peroxide, another acid such as sulphuric acid or phosphoric acid which in the bath has a stable anion and which does not form a complex with the dissolved metal and suitably a hydrogen peroxide stabiliser. The temperature of the bath is between 20 and 50C.