Homebrew PCBs

I can only hope that you're joking, and that everyone reading *knows*
that you're joking...

-jw



--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell <a_seychell@...>
wrote:
>
> YD wrote:
> > 
> > If you add muriatic (hydrochloric) acid and oxygenate
> > it converts to copper chloride. Looking at the
> > reactions described in
> > 
> > http://artmondo.net/printworks/articles/ferric.htm,
> > http://www.p-m-services.co.uk/ferric_chloride.htm and
> > http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/index.html
> > 
> > you'll find that with excess acid the iron turns into
> > insoluble ferric hydroxide (rust) and falls out as
> > sludge. What's left is the regeneratable CuCl2.
> > 
> > I did this myself for my etch tank so I know it works.
> > In the beginning it seems quite messy due to the rust
> > depositing on the walls and bottom of the tank but
> > careful decanting and a good scrub takes care of it.
> > 
> > - YD.
> 
> 
> How about a bottle of compressed pure chlorine gas ? Just throw a hose 
> going from the regulator mounted on the cylinder, to your bubble
etcher, 
> and let it rip. :)  May not be a good idea to do this in the kitchen.
>