Quote Originally Posted by AndreasT View Post
For what does one use sodium chloride in a developer?
By the way how long does benzotriazol last?
A. Iodized table salt is a ready source for potassium iodide, a very powerful restrainer. Whether the additives that PE expresses concern about would affect a developer and film one would have to experiment. It has been used for years for this purpose and some recent intertube explorations yielded no problems announced.

B. "Forever." Like my potassium bromide, something like 25 years and doing just fine.