Some of us are using very old paper, film, emusions
I read a bit on APUG from 2016
Interested in expert advice
The first 3 below seem much safer than the last one
I have only used the last one, once years ago and decided to not use it
Farmer's reducer from Merriam Webster
Benzotriazole
Potassium Ferricyanide
Potassium dichromate
and yes, buy new film/paper is the easy way
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