Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Removal of Metal Impurities in Cu Plating Tank
I want to extract Iron, nickel and zinc ions from acid copper plating tank. I have tried to dummy plate such item in low current density (2-5 ASF), but it doesn't work. Could anyone suggest to me for any treatment.
Sylvia So- Hong Kong
2001
Practically speaking....cut the bath 25-50%. Low current dummying really isn't practical. Acid Copper can take quite a bit of metallic impurities before it begins to affect the deposit but when it does it is much easier to just decant off a portion. A good idea is to drag the tank bottom daily for parts as the solution will dissolve them rapidly.
Jim Conner
Anoplex Software
Mabank, Texas USA
2001
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