Information trying to understanding error/damage

Discussion in 'US Coins Forum' started by Semi, Mar 23, 2020.

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  1. Semi

    Semi Member

    Vinegar ha does that leave a haze and if so what do you wash it with distilled water ...? lol vinegar date expert that's funny !
     
    Semi, Mar 25, 2020
    #21 + Quote Reply
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  3. hotwheelsearl

    hotwheelsearl Well-Known Member

    If you fail to rinse with distilled water the coins will develop a splotchy, unattractive “toning.”
     
    hotwheelsearl, Mar 25, 2020
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  4. Semi

    Semi Member

    Got ya.....
     
    Semi, Mar 25, 2020
    #23 + Quote Reply
  5. Semi

    Semi Member

    Question will that worl at all on copper ? I'm thinking no ,but you would know better than I
     
    Semi, Mar 25, 2020
    #24 + Quote Reply
  6. hotwheelsearl

    hotwheelsearl Well-Known Member

    Unfortunately acid doesn’t do anything for copper, except dissolve it.

    It works in nickel-copper alloy for some weird reason that may have to do with some kind of physics of metal flowing under pressure.

    In other words, acid can only restore the dates on nickel-copper coins
     
    hotwheelsearl, Mar 26, 2020
    #25 + Quote Reply
  7. Semi

    Semi Member

    Thought so.... Thanks
     
    Semi, Mar 26, 2020
    #26 + Quote Reply
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