Homebrew PCBs

At 08:41 07/04/18, Digest Number 2084 wrote:
>     Posted by: "Adam Seychell" a_seychell@... a_seychell
>     Date: Tue Apr 17, 2007 2:59 am ((PDT))
>
>pcb.easy wrote:
> >One last question about the storage of dry copper hydroxide powder.[snip]
>
>[snip] Use any available plastic household container.

No DONT!

Do not use anything which looks like a food container
(and especially a soft drink bottle) particularly if you
expect small children to be around and even if you don't ;-)

I can't see a good reason for keeping this waste product
as a trophy and there isn't likely to be a lot of it from amateur
processing, so unless you have serious intentions of
reclaiming the copper or re-using it in a CuCl etch system
I would recommend neutralizing your effluent with a small
excess of garden lime and immobilizing the precipitate
by the addition of a little cement. The resulting briquette
you should be able to throw into household waste with a
relatively clear conscience - otherwise it will store safely
until you can get it to a hazardous waste dump.


Regards, LenW
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