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Topic: copper stripping  (Read 3092 times)

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Offline CcardSharp

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copper stripping
« on: October 21, 2007, 10:16:43 PM »
what chemical would strip only copper from a penny leaving just the zinc in the middle? in other words, what would react with copper but leave zinc alone?

any help is appreciated. thanks
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Offline Bo_2Q

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Re: copper stripping
« Reply #1 on: October 21, 2007, 10:40:48 PM »
 (Cu,Zn) +HCl (l) , then leave the Cu    ( I am from VN , so grammar is not good )  ;D
You have ZnCl2 (l) , then you electrolyze ---> Zn + Cl2  .  ;)
             
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Offline ellis1101

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Re: copper stripping
« Reply #2 on: October 22, 2007, 04:14:06 PM »
Try looking at the activity series and choose a salt that involves a metal in between copper and zinc?
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