Acid copper is behaving uniquely

January 14, 2009

the acid content of my acid sopper bath has suddenly started to rise it has now reached 175 gm/l other constituents are copper sulphate 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 30, 2009

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

Guillermo Marrufo
Monterrey, NL, Mexico

January 30, 2009

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

Trevor Crichton
R&D practical scientist - UK

April 16, 2009

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
- Delhi, India