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Removing Cr+6 ions from cyanide copper plating baths

Hello... how can we remove Cr+6 ions from cyanide copper plating baths?

Emre Kaya
towel radiator - Istanbul, Sariyer, Turkey
2003

Hi Emre. The plating chemical manufacturers offer "chrome kill" maintenance additives for cyanide copper plating, but their power is limited. Dumping the bath may be the only solution. The bigger question is how the chrome gets there. You may need to fix your rack coatings or strip the racks after the plating cycle. Good luck.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
Need quick confidential answers? $25
Need project assistance? $100/hr.
2003

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