Homebrew PCBs

Let us be realistic!

Example: The volumetric area of my garage is 3600 cubic feet.
If I were to do my PCB etching in this area, how much effect is the 
"possible, but very remote" generation
of a minute amount of dihydrogen monoxide that might be generated
by approx. 12 ounces of a 80 Baume muriatic acid and 3% hydrogen
peroxide going to have in this volume of air ??

The danger in a well-ventilated area is reduced to virtually nil.

If I put a hood over my head over the solution in an open tray, I might 
have some
problems, but I don't do that kind of stuff (anymore).

Life as as an intelligent human generally revolves around some
sense of practicality.

Roland F. Harriston, P.D.



Russell Shaw wrote:
>
> Dylan Smith wrote:
> > On Sun, 25 Nov 2007, Roland F. Harriston wrote:
> >
> >> I personally think that Ferric Chloride is one of the worst 
> compounds to
> >> have around in a domestic environment, or in any environment that is
> >> not specifically designed to accommodate this material.
> >
> > In my opinion, they are all pretty nasty, and ferric chloride is the 
> least
> > nasty of a nasty lot... after all, hydrochloric acid is one of the 
> harmful
> > products of mustard gas (a WWI chemical weapon). The EPA classes HCl 
> as a
> > toxin, and at concentrations above 25% it's highly corrosive.
>
> Your gut contains a large amount of HCl.
>
> Beware the dangers of dihydrogen monoxide. It can be deadly;)
>
>