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looking for a brightener in palladium nickel plating solution for jewelry pen plating purpose

hi, I wanted to ask if anyone could have this info. and possible if they are able to released it without getting in trouble. what I am looking for is the brightener that is used in palladium -nickel plating solution that could give the optimum brightness, the solution will be prepared with pd(nh3)4cl2 , ammonium chloride, nickel chloride,and ammonium ,to balance the ph as required.the question again is what would be best additive to obtain the optimum brightness in this type of solution , please if you have an answer write to me. many thanks in advance. pierre...

pierre agyarian
rhodium king - beirut lebanon

Ed. note: If anyone can give Pierre a published reference, we would appreciate it. But because of the anonymity of the web, and the risk of blowing trade secrets, we cannot publish any formulations directly.

Ted Mooney, P.E.
finishing.com
Brick, New Jersey

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