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Acid copper is behaving uniquely

Q. The acid content of my acid copper bath has suddenly started to rise it has now reached 175 gm/l other constituents are copper sulphate [on eBay or Amazon]180gm/l chloride 140ppm . no acid has been added since last six months . no drag in of acid is there,anode bags are cleaned regularly. Can someone explain this unique behaviour.

Sanjeev Dania
job plater - Delhi, India
January 14, 2009

A. Maybe your anodes are not dissolving properly or you have too high cathode to anode ratio.

Guillermo Marrufo
Monterrey, NL, Mexico
January 30, 2009

A. How are your anode bags cleaned? I bet it is with acid...

Trevor Crichton
R&D practical scientist
Chesham, Bucks, UK
January 30, 2009

Q. The cathode to anode area I am maintaining is 1:2 the copper sulphate consumption is high. the anode bags are cleaned with nitric acid followed by dm water rinse

Sanjeev Dania [returning]
- Delhi, India
April 16, 2009

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