green death

[Thorne]

Anyone have any luck removing the green death off copper coins?

 

[goldencoin]

I've had good luck with acetone (cheap nail polish remover), but it is no guarantee

HH
-GC

 

[smokeythecat]

I used a car battery and electrolysis using baking soda as the activator. Only take seconds.

 

[sagittarius98]

I used a car battery and electrolysis using baking soda as the activator. Only take seconds.

Can you specify details? Would it work well on coins that have a small patch without ruining the coin? I know about electrolysis, but haven't found a good way to do it.