Electrolytic silver tarnish removal method

Details Electrolytic silver tarnish removal method Electrolytic silver tarnish removal method

C - Chemistry, Metallurgy

25

F

204/0.5

C25F 3/16 (2006.01) C25F 1/00 (2006.01)

Patent

CA 1196884

ABSTRACT An improved method of removing silver sulfide from silver articles which comprises forming a solution of sodium carbonate, a nonionic surfactant, and water; contacting the solution with an aluminum anode; and contacting the silver articles to be cleaned with both the anode and the solution to form an electrolyte cell; characterized by incorporating sodium sulfite into the solution.

404427

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