Summary for nickel metal cleaning Discussion
Nickel metal cleaning is the issue here: Tracey Smolinsky asked how to remove tarnish and oxides from a nickel surface after trying dilute sulfuric acid and considering other dilute acids. The only answer in the thread says there are a couple of ways to remove the oxide. According to the responder, if current is available, a cyanide/caustic solution should remove the oxide. The same answer also suggests citric acid as another option for oxide removal. The discussion is brief and does not compare the methods in detail, but it does point to alkaline cyanide/caustic cleaning with current or a citric-acid approach as the practical suggestions offered.
Q. We have a nickel surface that is tarnished. We would like to find a cleaning solution to remove the oxides from the nickel. We’ve tried a dilute solution of sulfuric acid, and we’re also going to try other dilute acid solutions. What else can we use?
Tracey Smolinsky
– Elverson, Pennsylvania, USA
2001
A. There are a couple of ways to remove the oxide. If you have current a cyanide/caustic solution should remove the oxide. Also you could use citric acid
⇦ on
or
Amazon [affil link] to remove the oxide.
George Shahin
Atotech – Rock Hill, South Carolina
2001