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| Part A | ||
| Water 125F/52C | 750 | ml |
| Potassium Ferricyanide | 15 | g |
| Potassium Bromide | 15 | g |
| Cold water to make | 1000 | ml |
| Part B | ||
| Cold water | 1000 | ml |
| Sodium Sulfide | 15 | g |
| Mixing Instructions: Add chemicals in specified sequence. If warmer sepia tones are required, add 2g-4g of Potassium Iodide per liter of Solution B at least 30 mins prior to use. |
| Dilution: Use undiluted. |
| Usage: In subdued light (not sunlight, nor dark) bleach print in Solution A until deepest shadows are pale yellow. Wash thoroughly until stain disappears, then immerse print in Solution B for about 5 mins to redevelop. Fix and wash fully. |
Notes If whites are stained, use a 10% sodium bisulfite solution to clear highlights prior to final wash.Solution A can be reused and will keep well if stored in amber glass bottles in dark conditions. Formula requires Sodium Sulfide, NOT Sodium Sulfite. |
