--- In
Homebrew_PCBs@yahoogroups.com, Adam Seychell <a_seychell@...>
wrote:
>
> Dale J. Chatham wrote:
> >
> >
> > My guess is that you have CuCl as the blue sludge. I suppose it
could
> > be CuOH, but you'd have to convince yourself that Cu would rather
bond
> > with OH. A smell of chlorine when you are reacting would be a
clue, or
> > bubbles and a yellow gas.
> >
>
> CuCl is copper(I) chloride, a white insoluble and unstable solid.
>
> Or you have to convince yourself that sodium ion prefers chloride,
> therefore leaving copper ion nothing else but to except the
hydroxide.
>
> If the solid is a bright pale blue with clear liquid then you can
be
> sure its copper hydroxide.
>
Adam,
The sludge is a bright pale blue, and the liquid is very clear. So
you think it is copper hydroxide, Cu(OH)2.
Can I dry the copper hydroxide? How should it be stored?
My goal here is to reduce the volume of waste by extracting the
water, and identify the substance to the hazard waste facility.
Thanks for you help.