Congratulations, you have just produced some chlorine gas.
Your proportions are wrong.
There should not be any bubbling if the proportions are right.
Your acid is probably way too strong (how many % is it?), and too much
H2O2 too.
In short, way too much of everything ;-)
You should at least dilute the acid down to 10 or 15% with water and use
only small amounts of H2O2 just to keep it bright green.
If it still bubbles, maybe dilute, and get some ventilation going. Don't
let get too hot!
Read the links in the links section about CuCl, although most are more
complicated than need be.
ST
On Wed, 08 Feb 2006 22:31:47 +0100, mycroft2152 <
mycroft2152@...>
wrote:
> I just tried the HCl/Peroxide etchant solution. 1.5 parts 40 volume
>
> Hydrogen Peroxide to 1 part HCl (Muriatic Acid)
>
>
> WOW! A very active etch. Took under 1 minute to etch a 2 sided board.
>
> The solution went from clear to bright green and bubbled furiuosly.
>
> After 20 minutes its still bubbling.
>
>
> If anyone has experience with this etch solution. Does it stop
>
> bubbling? Is it storable? Were my proportions correct?
>
>
> I never was worried about undercutting , but with this etchant, I will
>
> definately be concerned.
>
>
> TANSTAAFL!
>
>
> Myc
>