[pure-silver] Re: Adding Pot Bromife to PC-TEA
- From: "John Black" <jblack@xxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 4 Jan 2005 12:01:55 -0500
> > Or, use a modest boric acid solution, say 5-10gm/L of water as diluent
to
> > lower the pH and anti-fog is not needed. An equal amount of sulfite may
be
> > necessary to restore PC activity. PC/TEA diluted 1:50 in water as
Gainer
> > suggests has a pH of greater than 9.0 and that's where the fog comes
from.
>
> Really? Then why do I see so many people asking for Gainer formula???
> Unbelievable.
I suspect the lure of G's formulas are their simplicity for non-chemist,
non-scientist hobbyists. But, as in most of life, simplicity is not always
without a cost. In taming the grain and fog in his formulas, one arrives at
close approximations of published, accepted developers.
JB
>
> If anyone wants a dilute accutance developer based on ascorbate, DS-2
> or DS-12 works out of the box. If anyone wants a fine grain developer
> DS-10 or XTOL works out of the box. DS-12 can be made in a concentrate
> form that lasts for a long time.
>
> --
> Ryuji Suzuki
> "Keep a good head and always carry a light camera."
>
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