Re: Sulfite/preservation and silver solvent
Jack Fulton (jfulton@itsa.ucsf.edu)
Tue, 29 Oct 1996 06:59:01 +0000
As I understand it … if Sodium Sulfite is used in a developer, it will
act as a preservative for the developer agents which could oxide
rapidly.
In D76, the Sulfite is used to an excess, hence Borax is used as the
accelerating alkali not Sodium Carbonate which will fog things w/too
much Sulfite. W/that amount of Sulfite, D76 works as somewhat of a
silver solvent producing that slightly soft yet sharp look vs Rodinol or
even Amidol.
Jack