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Ted Mooney, P.E. RET
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Nickel metal cleaning
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 ⇦ this on eBay or Amazon [affil links] to remove the oxide.
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George Shahin
Atotech - Rock Hill, South Carolina
2001
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