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| Part A | ||
| Water | 1000 | ml |
| Potassium Ferricyanide | 100 | g |
| Potassium Bromide | 100 | g |
| Water to make | 2000 | ml |
| Part B | ||
| Water | 500 | ml |
| Thiocarbamide | 50 | g |
| Water to make | 1000 | ml |
| Part C | ||
| Water | 500 | ml |
| Sodium Hydroxide | 50 | g |
| Water to make | 1000 | ml |
| Mixing Instructions: Add chemicals in specified sequence. |
| Dilution: Part A is stock solution of Bleach. Mix equal parts B + C, then dilute 1+9 with water to make stock solution of Toner. |
| Usage: Immerse fully-washed print (presoak if previously dry) in the bleach until it turns a faint buff color. Rinse in several changes of water. Redevelop in toner solution for one minute or until fully redeveloped. Wash. |
Notes Part A is Bleach, Parts B and C are combined to make TonerSolutions can be stored for several months in opaque bottles. The working solution should be used immediately or stored for a short period only. For yellow-brown tones make working solution with half the quantity of B. For deep-brown tones make working solution with double the quantity of B. |
