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>

He didn't say he wants copper oxide, he wanted to know
why he wasn't getting it. At least one form of Copper
Oxide -is- green. The only form of copper I've seen
turn black was brass when Liver of Sulfur was applied,
and in that case it may be the zinc (is there tin in
brass?) turning black.

The oxygen would come from the H2O breaking down, as
stated due to elecrolysis.

Can copper form a chloride? Well, yes, and I think it
is green, isn't it? I think it is just etching the
copper surface away and forming tiny crystals of pure
copper, as another poster suggested.

To the original poster: Is there enough of the pink
growth to test it's conductivity? If it is an oxide or
a copper salt, it should be nonconductive once dry.

And further to the original poster: neither electrode
can be considered the cathode because you are applying
AC to them. It may be that you -meant- it to be the
cathode, but it is not acting as a cathode because it
is emitting and collecting electrons on alternate
cycles.

Steve Greenfield

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "rheidlebaugh by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <rheidlebaugh-at-zialink-dot-com>
> 
> Brass is not copper, but a mixture of copper and
> other metals mostly zinc.
> Salt is a chloride not an oxide. Your mixture was a
> mix of copper, zinc,
> sodium chloride and some other metals. The copper
> oxide you want is nearly
> black. Burning the pure copper is the easiest way to
> get it. Excess heat
> will flake it off.
>   Robert  H
> 
> > From: "Tesla list" <tesla-at-pupman-dot-com>
> > Date: Tue, 05 Feb 2002 18:18:28 -0700
> > To: tesla-at-pupman-dot-com
> > Subject: copper oxide
> > Resent-From: tesla-at-pupman-dot-com
> > Resent-Date: Tue, 5 Feb 2002 23:16:59 -0700
> > 
> > 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?
> > 
> > 
> > 
> > Thanx, 
> > 
> > Me
> > 
> > 
> 
> 
> 


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