I was thinking of getting bromophenol blue and methyl orange. What do
you recomend? Shipping tends to be expensive so I thought I would try
to get everything I needed (or might) at one time.
The indicator paper showed a clear red color which corresponded to pH
2 and then pH 3. The etchant color did not seem to interfere.
Grant
--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell
<adam_seychell@y...> wrote:
you recomend? Shipping tends to be expensive so I thought I would try
to get everything I needed (or might) at one time.
The indicator paper showed a clear red color which corresponded to pH
2 and then pH 3. The etchant color did not seem to interfere.
Grant
--- In Homebrew_PCBs@yahoogroups.com, Adam Seychell
<adam_seychell@y...> wrote:
> > I also found an inexpensive source of indicators in the US who will
> > send them up here.
>
> What indicators are you getting ?
>
> I would imagine the dark color of this solution would make pH
> papers useless.