Homebrew PCBs

On 2/28/2011 9:05 AM, Randy S. wrote:
>
>
> Where do I purchase 30% H2O2 ?
> I
>
Beauty shop/professional hairdresser suppliers carry it.
As to disposal, bubbling air through it, or adding a bit of HCl seem to 
rejuvenate it - no need to dispose of it.  Do a Google on copper 
chloride etch - e.g.:

http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/

Norm
W6NIM



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