--- In
Homebrew_PCBs@yahoogroups.com, Richard Mustakos
<rmustakos@a...> wrote:
> Dave
> Did you try this as a rejuvenator, or just for starters?
First attempt at chemicals.
When did it
> outgas, when they were
> mixed, when you were etching, or both?
All the time. more if I stirred it.
> If it yields H2O2 when it hits
> water (per the link
> (http://experts.about.com/q/2460/2671970.htm), it may have, though
the
> 'expert'
> disagrees with the product data sheet, product data sheet says CO2)
it
> could just
> have been an initial reaction, and turned stable when it was done
> "converting". I've got a
> couple of gal of HCl, but only a liter of 3% H2O2, and was looking
for a
> way to make up
> the O2 deficit, both immediate and over time.
> According to the product sheet you pointed to, it
is 'incompatible
> with acids' :^)
> Contact with acid generates heat and liberates carbon dioxide.
> The heat is controllable. The CO2 gas generation is not an
issue.
> Question is what does
> the K do to the mixture. I sent the question to a chemistry
expert - we
> will see if he answers.
> (same guy at experts.about.com)
> Richard
I don't know what it did, but it did remove the copper.
I'll be very interested in more information.
Dave