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Chloride problem in copper stripping bath

We face unstrip problem in our copper stripping bath when it's chloride content goes more than 1 ppm.

Bath composition : Sulfuric acid
: Hydrogen peroxide
: Cu51
Temperature : 35C

How to reduce the chloride content ?

Kogelan Jeyacelan
Lab Technician - Malaysia
February 23, 2011

If the chloride concentration is low and known add an equivalent amount of silver salt to precipitate as insoluble silver chloride

Geoffrey Whitelaw
- Port Melbourne, Australia
February 27, 2011

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