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Copper + (KI + I2) = ?

  1. Aug 16, 2012 #1
    Copper + (KI + I2) = ???

    Hi all,

    I have put some copper (60um - electroplated on a gold seed layer of 100nm) in the following solution: KI + I2
    The copper is still there, but is now covered by a thick layer of a "grey compound"... Huh

    I'm really dummy in chemistry... can you help me to find out the formula of that compound ?
    How can I remove it without destroy the copper ?

    Thanks a lot!
     
  2. jcsd
  3. Aug 16, 2012 #2

    chemisttree

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    Re: Copper + (KI + I2) = ???

    What was underneath the gold and how do you know the copper layer is still there?
     
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