Description
I'm a jeweler. I'm using Argentium silver with germanium. I pickle in a solution that contains sodium bisulfate combined with distilled water. All okay after that...the problem is when I neutralize the pickle in distilled water & baking soda, or even distilled water and a mild dish detergent, I get a slight copper flash...No body's been able to explain why this is happening...so I thought a chemist would know..Thanks..
Explanation & Answer
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sodium bisulfate -- for pickling with copper alloys or if you are in a group-studio situation. I have one pickle pot that I use for all metals, and I haven't had any trouble. However, it's not a bad idea to avoid any cross-contamination; it's possible that contamination in the form of copper deposited on the surface of the Argentium sterling could affect tarnish resistance.
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