world gathers for metal finishing
Q&As since 1989
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Copper has oxidized to black color
January 21, 2009
Hello,
I'm working with copper substrate for electronic application, I found different level and color of oxidation. Could you help me to understand the oxidation with black color and how I can remove, reduce, this oxidation ?
Thanks
Valeriano
research - Rome, Italy
Hi, Valeriano. You haven't given us any details to work with, but black oxidation may be a reaction with sulfides, and copper oxidation can be slowed with benzotriazole
[on
eBay or
Amazon]
or chromates. Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
January 21, 2009
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