On Sep 26, 2004, at 7:09 AM, Byron A Jeff wrote:

> But I need a certain amount of peroxide to get the volume of liquid I 
> want.
> Denny's formula uses the peroxide as the water component too diluting 
> the
> HCl. So he suggests a 2 to 1 mix of H2O2 to the HCl. I have enough 
> muratic
> acid, but I ran out of peroxide.

Oh, I get it...  Yes, that won't hurt anything, as far as I know.
IIRC, I started with 1:1:1 or so HCl, H2O2 (3%), and water.  I
should do a more controlled generation where I pay attention; like
you I got enthusiastic just to see things working :-)

You might want to do your initial CuCl2 generation in a tall bottle
rather than a shallow tray.  I did mine in a 2l soda bottle with the
top cut off (and put back on funnel-style to help contain foaming,
spray, and fumes.)  It's a lot easier to get a wad of copper wire
submerged in a 6 inch deep bottle than in a PCB-etching tray.

BillW

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