fixer
Kodak F-24 non-hardening fixer
Handle chemistry safely
Wear gloves and eye protection, work with good ventilation, and read the supplier’s safety data sheet before use. Hazard information here is a summary, not a replacement for it. Dispose of all photographic chemistry correctly, in line with local laws and your local authority’s guidance. Never mix waste solutions, and check the supplier’s safety data sheet before disposing of anything.
Ingredients
| Sodium thiosulfate pentahydrate | 240 g |
| Sodium sulfite (anhydrous) | 10 g |
| Sodium bisulfite (anhydrous) | 25 g |
| Water to make | 1.0 L |
Notes
Non-hardening acid fixer for films and papers. Kodak advises keeping the developer, rinse and wash at or below 20 °C because the gelatine is not hardened.
Source
Processing Chemicals and Formulas for Black-and-White Photography (Kodak Publication J-1), 7th edition, Eastman Kodak Company (1977), p. 38
Amounts as published. Chemical forms (anhydrous, monohydrate and so on) change the weights, so match the form listed.