Homebrew PCBs

On Mon, 22 Mar 2010 14:35:42 -0400, you wrote:

>As I understand it, the H2O2 is used to provide oxygen to the HCl, 
>but using 3% peroxide slows it down because of dilution of the 
>HCl.  Has anyone tried just bubbling some oxygen through the HCl? Or 
>is this just too dangerous to contemplate?? Thought I'd ask before 
>trying. <smile>

Just bubble air.  IIRC, it will convert to CUCL soon enough.  That
will require air to work.

Harvey

>
>Mark
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>