Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" 
<leon_heller@h...> wrote:
> 
> >From: Anthony Toft <toftat@c...>
> >Reply-To: Homebrew_PCBs@yahoogroups.com
> >To: Homebrew_PCBs@yahoogroups.com
> >Subject: [Homebrew_PCBs] CuCl etching
> >Date: Sat, 02 Oct 2004 07:55:29 -0400
> >
> >
> >I am going to be mixing a batch of CuCl etchant today using the 
recipe
> >found on the group site. Basically 2:1 3% peroxide:Muriatic Acid. 
I have
> >read that I should 'preload' this with some copper, is it 
necessary?
> 
> It will probably speed it up. You aren't really using CuCl etchant, 
it's HCL 
> and HO2, and can only be used once. If you treat it properly and 
get the 
> chemistry right, it may be turned into CuCl etchant.
> 
> 
> >
> >Also would a used soda bottle be suitable storage for the results? 
As I
> >think the etchant will work more than once right?
> 
> 
> I use plastic milk bottles to store FeCL3 and CuCl etchants. The 
HCL I've 
> got came in a plastic bottle.
> 
> Leon

I store my HCL container inside of a 5 gallon plastic container with 
another lid.

Leave a few pieces of copper around your chemicals to see any long 
term reaction.

I was getting a nice green on my test strips in a little over a week.

Dave