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Subject: Re: [Homebrew_PCBs] Blackening Copper

From: mpdickens <md30022@...>
Date: 2004-05-17

> > a solution composed of NaOH and H2o2?
> > You will get:
> >
> > Cu(OH) Blue in color
> > Cu(OH)2 Black in color.
> >
> > If you apply heat, the Cu(OH) will be oxidized to
> > Cu(OH)2.

> Thanks, that's worth a try....

> ST

Hey Stefan,

Did you give the above a try? If so, what were the
results?


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