Re: Electrolysis of aluminium anode and copper cathode with NaCl el...

An aluminum plated rupee. Now I really suspect it comes from impurities
in the aluminum. You're right about it posibly being oxides, especially
if it came from the anode as I suspect. Chlorides are hard to
precipitate out as they are generally soluble.

You have some of this stuff on your desk. Is it soluble in concentrated
HCl, or do you need concentrated HNO3? Once in solution -- can you
apply qualitative analysis methods to it?

--OL

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