[sdiy] Cupric Chloride etchant?

[cheater cheater]

How do you dispose of this stuff?

Is there a way to chemically neutralize it so that it can go down the drain?
There are some links on the 'net about reducing cupric chloride, but i
have no idea if that's feasible at home, or if it does much good to
the disposability of the thing.

D.

On Sat, Jan 16, 2010 at 21:39, HL-SDK Synths <syntroniks at gmail.com> wrote:
> Only thing I have to worry about is disposal, If it isn't etching fast
> enough for me, I add more peroxide and/or acid. That speeds it up
> considerably, but I am slowly working my way up in liquid volume. The same
> bottle of acid and peroxide have lasted me a few boards I suppose. I prefer
> it to the ugly ferric chloride.
>
> On Fri, Jan 15, 2010 at 12:34 PM, David G. Dixon <dixon at interchange.ubc.ca>
> wrote:
>>
>> > Hi guys, has anyone used Cupric Chloride for etching their PCBs?
>> >
>> > Relevant link:
>> > http://www.diyblog.net/2009/11/21/cupric-chloride-as-a-pcb-
>> > etchant/
>>
>> I've done all my boards this way.  It's brilliant.  I keep a bottle of
>> green
>> solution in my garage, and when I'm ready to etch, I bring it in the
>> house,
>> pour some into a pyrex dish, and do it in the laundry-room wash-basin.
>> About every third or fourth time I add a few splashes of hydrochloric
>> (muriatic) acid, and each time I add a splash of peroxide.  Even when the
>> solution is stone cold, etching is still complete in about 3-5 minutes.  I
>> just wear a rubber glove and swish the board around with my hand.
>>
>> I'm still using the same solution I started with almost a year ago.
>>
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>
>