Re: copper etching
farooq_w_at_hotmail.com
Date: 12/29/04
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Date: 29 Dec 2004 12:57:05 -0800
wsb wrote:
> Wilco
> I add 150ml. clorox to what i have posted in the first post, i did
it
> quick and step back 3 meters away.
> Yes Cl gas was strong but i am still communicate with you.
> 36 hours since i did it, I can hear the battle in side the bottle
(how
> is this phrase )
> Now to the ultimate etching, what i have found by deep googling is
that
> HCL + CuO is the best to use because it will auto regenerate itself
By HCl+CuO the author might be referring to copper chloride solution,
which you may already have as Wilco has told the method to you. In
short dissolve copper *wires* in HCl containing hydrogen peroxide H2O2;
Don't heat the mixture, just let the reaction slow down by itself, this
would take and hour or so. You will get a dark greenish solution of
copper chloride. Do not try mixing bleach with H2O2 or with the acid
and never add bleach to copper solutions...which may lead to formation
of copper oxychloride which is very toxic. Remember that copper salts
are poisons.
>
> CuO is black copper oxide but i couldn't find it in our village
> I need 100g only, Can i make it by heating copper wires ?
No, this wouldn't be practical, if you follow the above method of
making copper chloride you would not need the oxide at all. The usual
method of preparation is indirect i.e. by thermal decomposition of some
if its salts.
> farooq sound good cu expert
> thanks
>
> wasban
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