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topic 61183

Dissolution of silver anode in high cyanide solution



December 8, 2020

Q. Hi. I have immersed a basket of silver anodes (>99% purity) into silver plating electrolyte with around 150 g/l of KCN for several days (rectifier is off). Would it dissolve the silver from anode into solution? Thanks.

Cody Foong
- Malaysia Penang


December 2020

A. Hi Cody. Metallic silver is soluble in potassium cyanide so, yes, to some degree the silver will dissolve --

61183-1ext
(from 911metallurgist.com/blog/gold-silver-dissolution-cyanide-concentration)

But please, no hypothetical questions ... you told us what you actually did, so what was the actual result? And what motivates your question? Thanks.

Luck & Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com - Pine Beach, New Jersey
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