Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

John Michaud <greyfox1143@...> writes:

> I didn't expect to generate so much attention to Ferric Chloride and
> with that living in Oregon I've been concerned with the environment
> so is there a environmentally safe method to etching?

I'm switching to CuCl etching for that reason - nothing to throw away,
unless you grow too much etchant. Even then, you can precipitate out
the copper and recycle it.

http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/

That's what you need the HCl and H2O2 for.