Re: copper oxide

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steve Greenfield by way of Terry Fritz <twftesla-at-qwest-dot-net>" <alienrelics-at-yahoo-dot-com>

That would make sense since he's putting AC on it, not
DC, so maybe one cycle is oxidizing the copper which
makes it come loose in flakes, and the opposite cycle
de-oxidizes it so you get those tiny copper flakes.

When I first start etching a PCB the copper surface
turns pink. A close examination reveals that it has a
fine "ground glass" finish on it.

Steve Greenfield

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Alexander Rice by way of Terry
> Fritz <twftesla-at-qwest-dot-net>" <ajjrice-at-yahoo-dot-com>
> 
> 06/02/2002 01:18:28, "Tesla list" <tesla-at-pupman-dot-com>
> wrote:
> 
> my guess is copper - it looks pink when it is very
> fine crystals
> 
> >Original poster: "by way of Terry Fritz
> <twftesla-at-qwest-dot-net>"
> <RQBauzon-at-aol-dot-com>
> >
> >For my sci. project, I hooked a copper anode to a
> TIC and made a grounded
> brass
> >anode.  They were dipped in a saltwater solution. 
> The anode bubbled furiously
> >as a result of electrolysis and the cathode
> developed a pink growth instead of
> >the desired green copper oxide.  What could the
> pink stuff be? 


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