To clean or not to clean a kilo bar?

Discussion in 'Silver Coins' started by hyphenated, Nov 5, 2012.

  1. Clawhammer

    Clawhammer Well-Known Member Silver Stacker

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    That's easy, just put it in a sealed container with some burning sulphur (i.e. throw in some lit matches) and it'll turn as black as the ace of spades.
     
  2. Lunarowl

    Lunarowl Active Member Silver Stacker

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    taking notes.. ok.. now how do you do the yellow, blue, purplish toning?
     
  3. FraterArgentum

    FraterArgentum New Member

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    Ahhhhh of course: 'Tarnish' = Silver Sulfate
    It's basic chemistry 101.....but yeah: What about 'Rainbow Toning'? ;)
     
  4. Clawhammer

    Clawhammer Well-Known Member Silver Stacker

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    Artificial rainbow toning is achieved by electrolysis in a sulphate bath. Different voltages produce different thicknesses of 'tarnish'. It's light being refracted as its reflected through sulphide layer. Different thicknesses of tarnish produce different colours.
     
  5. SilverMike

    SilverMike New Member

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    Pet it often and wait a few years.
     

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