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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Removing nickel contamination from Pd and Au solutions
2004
I'm running a NiPdAu plating electronics components,
Solutions used are Ni sulphamate, Potassium Gold cyanide, Palladium Ammonium chloride.
Currently facing that the Ni contents inside Pd and Au bath in increasing trend. I have tried several impurities removal resin, but it also remove Pd and Au in very much.
Can anybody help on providing a way to remove Ni in Pd and Au bath without removing too much precious metal.
Ng Yow Keongelectronics mfgr - Shah Alam, Selangor, Malaysia
It's not easy to get non-precious metals out of aqueous solutions of precious metals, Ng. So much so that a better approach is to have a recirculating D.I. system on the rinse after nickel and before the precious metal
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2005
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