Author Topic: Electrolysis - Before and after. (Read 6006 times)

bruce61813 · « **Reply #15 on:** September 25, 2012, 05:32:43 PM »

I am not sure what the "weird color" would be. If the coins are over cleaned, they may be stripped to a near pure copper surface, if some of the tin is leached out, that would make them pinkish in color. Using the soda mix, and low voltage, tends to leave them a more normal tan or brown color.

Bruce

aristonazir · « **Reply #16 on:** February 25, 2013, 01:28:34 AM »

When i was a little kid, one of my cousins told me to clean my coin collection (only a hundred of coins those days), putting them in vinegar for a month! All of them together: coppers, copper-nickels, nickels, irons etc. A total disaster for my little collection. A layer of "dirt" has covered all my coins and also their shiny lustre has gone! This was a good lesson for me.
Today i decided to try cleaning some of them using electrolysis (12 V/with soda). I also make a "test" in some silvers. The result is good. Here is one of my childhood's collection.