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Subject: Re: [Homebrew_PCBs] First PCB

From: DJ Delorie <dj@...>
Date: 2007-01-10

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).