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Subject: Re: [Homebrew_PCBs] Blackening Copper

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-05-17

On Sun, 16 May 2004 16:00:45 -0700 (PDT), mpdickens <md30022@...>
wrote:

>> > 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?
>
>

not yet...

i'll tell you then.

ST