--- In
Homebrew_PCBs@yahoogroups.com, "Stefan Trethan"
<stefan_trethan@...> wrote:
>
> I think the main question here is not about the CuCl stuff, we
understand
> that well, but for copper.
> What happens with brass i wouldn't know.
>
> The bubbling normally adds oxygen like H2O2 does, but again, i do
not know
> what happenss with the added zinc.
>
> ST
I just want to make sure it would be safe to introduce brass to the
mixture without any dangerous changes in composition.
I will also be doing small etchings also, but if it works out OK, I
may end up selling some of my etchings, and therefore would like
to "renew" the mixture using the bubbler method.
Plus, I am used to the bubbler in the etchant to help etching
speeds, along with an aquairum heater, from other etching
techniques.
Also, i wanted to make sure it would be safe to store this mixture
in a Rubbermaid container, or if the mixture would create enough
gasses to blow the lid off, if brass is introduced. A previous post
mentioned that brass etched in this mixture may create too much
bubbling.
Greg