Benzotriazole - Recrystallizing

focus_on_infinity · Jan 18, 2022

BAC1967 said:
Just had my Benzo go fuzzy, barely lasted over a week. I followed the directions on the bottle I got from photographers formulary. I mixed 10 grams into 500 ml of hot distilled water. I ordered some 100% propylene glycol, do I just do the same mix, 10 grams into 500 ml of propylene glycol to get the same results I was getting with it mixed in water? I assume propylene glycol doesn’t affect the development. I’m using it to reduce fog in some expired film.

I never got around to playing with the glycol. For fog reduction, I just keep it 1% and use twice as much.

Patrick Robert James · Jan 18, 2022

Since this popped back up, the last batch I mixed in 91% Isopropyl and it has been fine.

BAC1967 · Jan 18, 2022

I’m dissolving a 2% solution in Propylene Glycol right now. It’s at room temperature and it’s slowly going into solution. I’m not going to be using it right away so I’ll just wait and see how well it dissolves without heating.

Benzotriazole - Recrystallizing

focus_on_infinity

Patrick Robert James

BAC1967

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