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Author: Subject: Electroplated metal identification?
lahthffire
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[*] posted on 23-8-2006 at 10:42
Electroplated metal identification?


I have a part that is made of steel, and it looks like it has been electroplated with nickel. It's been electroplated with something silver, anyways. Can anybody think of a handy way to confirm or deny that the plating is nickel? The good old XRF analyzer would do the trick, but it's not currently available.
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12AX7
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[*] posted on 23-8-2006 at 15:50


Could leach off some with HCl, then test it with, um, whatever that glyme is that precipitates nickel (pink complex).

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[*] posted on 23-8-2006 at 18:58


Nitric acid might work better, about 35% or so, just a drop. Hydrated nickle salts are green, copper blue-green. Dimethylgloxime gives a red precipitate with a neutral to weakly alkaline solution of nickel salts. You can buy tests kits for nickel.
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