Homebrew PCBs

Lez <lez.briddon@...> writes:
> >  I used homebrew etchant (2:1 hydrogen peroxide/muriatic acid).

> Can someone explain what this really is?

Hydrogen Peroxide is H2O2 : http://en.wikipedia.org/wiki/Hydrogen_peroxide

Muriatic acid is HCl in H2O : http://en.wikipedia.org/wiki/Muriatic_acid

> Such names are meaningless in any other country except the states?

Er, they're chemical names.  They should be meaningful in any country.
*Obtaining* them, however, seems to be country-specific, and you have
to get the right strengths (dilutions).