[pure-silver] Re: Chemists: WHY Is It 28%
- From: Janet Gable Cull <janetgcull@xxxxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Sun, 26 Oct 2014 19:59:45 -0400
re: Richard Knoppow... I'm always so impressed by how smart so many of you
guys are!
On Sun, Oct 26, 2014 at 11:57 AM, Ham Burger <
dmarc-noreply-outsider@xxxxxxxxxxxxx> wrote:
> Since the beginning of time as a photographer, I've used the advised 1.5oz
> of 28% Acetic Acid per
> quart of working stop bath. Now, I realize this is not a super critical
> thing, it just has to
> stop any further development, but I am curious: Who came up with this
> exact formulation, and more
> importantly, *why* is this particular dilution right?
>
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