Question about F-24 formula

Questions on fixers for both film and paper

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steve goldstein
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Joined: Sun Aug 16, 2020 10:33 am

Question about F-24 formula

Post by steve goldstein »

Formula #138 for Kodak F-24 fixer suggests that "substituting 22.0 grams of Citric acid for the (25.0 grams of) Sodium bisulfite will largely eliminate the fixer odor. Is this really correct? I tried it yesterday and got a really nasty surprise - I think it evolved Sulfur dioxide, which was quite unpleasant in my small and poorly ventilated work space.
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