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Topic: Electroplating without electricity????  (Read 1684 times)

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Offline james5239

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Electroplating without electricity????
« on: July 28, 2015, 06:04:21 PM »
So i got copper acetate in a baking pan (i used it before for copper acetate) And i used a putty knife to get it off Now there is copper accumulating in those scratches.
Any idea why?

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Offline Enthalpy

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Re: Electroplating without electricity????
« Reply #2 on: July 30, 2015, 05:24:43 AM »
You can understand it as electroplating if you wish - though it's probably not the conventional name.

Two distinct electrodes, of copper and iron, in a copper thingyate electrolyte, would already make a voltage in the proper direction for electroplating to occur if connecting them, without external power. So much, that an external circuit isn't necessary: a lone iron electrode gets a copper deposit.

This spontaneous deposition must be avoided if willing to build a primary or secondary battery: it corresponds to self-discharge. Not easy.

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