Thanks for the additional info, Adam. What kind of methyl orange are
you using - aqueous? What percent, 0.1% or....?
(MO seems to be more readily available than bromophenyl blue and not
too pricey). What is the shelf life of the stuff?
I haven't figured out how to access usenet groups with my current
setup, so MO seems the easiest way to go.
Grant
--- In
Homebrew_PCBs@yahoogroups.com, Adam Seychell
<adam_seychell@y...> wrote: [snip]
> Yep, that sounds about right. I think the best thing for you to
> do is post that question on sci.chem news group explaining you
> are titrating HCl in cupric chloride. approx. strengths 1 Molar
> and can accept few percent error. I am using methyl orange with
> good success.