I am trying to remove silver plating from a job. the substrate is plated with nickel before it is plated with silver. I tried the sulfuric/nitric acid method, but it attacks the undercoat. Is there a harmless nonproprietary method to remove silver from nickel
Nitin Kibe - Pune, India 1999
Hi Nitin. You can use sodium cyanide 90 g/l and sodium hydroxide
15g/l. , room temp anodic 6 A/dmů with a steel cathode.
And you can also try 10 percent of sodium cyanide and water to full volume 1 to 5 Amp/ dmů anodic, 20 °C.
Anders Sundman 4th Generation Surface Engineering
Consultant - Arvika, Sweden 1999
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