On Wed, 4 Jan 2012, Al Shinn wrote:

> Sergio,
> Egg on my face! I etched some copper with the H2O2 and muriatic acid and
> then precipitated out the copper with baking soda as I suggested. You
> were right, the remaining solution is too blue (has some copper left)
> for me to feel good about dumping down the drain, don't even need the
> ammonia test. I'll try the steel wool to scavenge the remaining Cu.
>
>
>
> Looking forward,
> Al Shinn

Hi Al,

Might I suggest that you simply let the neutralised solution evaporate to=20
leave just solid then dispose of all the solid together (possibly together=
=20
with other metal that is to be recycled).

Regards
Sergio Masci

--=20
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