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How to strip plated silver off copper

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I am looking for a system that doesn't involve cyanide, nitric acid or machining to strip plated silver off of copper, so that the copper can be reused and replated in needed. Thank you, Peter

Peter Slade
electrical controls mfgr. - Horseheads, NY

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Dissolve 4 oz/gal sodium nitrate in concentrated sulfuric acid. Electrostrip with a lead cathode at 3V, 70-120F.

James Totter, CEF - Tallahassee, Florida

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I am looking for a solution to strip plated silver from copper powder (30~40 micrometer), so that the copper can be reused and replated in needed. Thank you, very much

Gyu-Sik KIM
- Asan, ChungNam, KOREA

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James Totter's reply is essentially applicable, Kim; however, remember to develop this process in extremely small batches until you are familiar with it because conventional plating and stripping chemistry proceeds so rapidly on powder (because of it's tiny mass and huge surface area) that reactions can be virtually explosive.

Ted Mooney, P.E. finishing.com Brick, New Jersey

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Hi,

I would like to remove silver plating from copper and brass items and collect, I have seen these systems and can not find the manufacturer, do you know who produces this type of equipment.

Thanks,
Mike

michael coletta
- Rockville Centre, New York, USA

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July 31, 2008

would like to remove silver plating from copper and brass items and collect, I have seen these systems and can not find the manufacturer, do you know who produces this type of equipment or how to do it without harsh chemicals

kathryn mueller
artist - edwardsville, Illinois