Quote Originally Posted by CBG View Post
Not quite, but very many. It is as noted before an "accelerator" for developers. In plain terms, an alkalai, since all common developers* will not function in a neutral or acidic environment.

* except amidol

Common accelerators are:
Sodium Sulfite
Borax
Sodium Metaborate
Sodium Carbonate
Potassium Carbonate
TSP Tri sodium Phosphate
Sodium Hydroxide
Potassium Hydroxide

Sodium Carbonate is used in something roughly like half of the several hundred developer formulas I have in my computer (don't ask, it's an obsession)

It's also used in some toners and a small miscelany of other photograpic processes,

Best,

C
I don't think sodium sulfite is ever going to get your developer going. I know I mix my paper developer with a bunch of sodium sulfite and sodium carbonate and if I leave out the sodium carbonate the developer doesn't do a darn thing regardless of how much sodium sulfite it has in there.