Part A | ||
Water | 750 | ml |
Potassium Metabisulfite | 24 | g |
Pyro | 100 | g |
Cold water to make | 1000 | ml |
Part B | ||
Part A solution | 50 | ml |
Cold water to make | 500 | ml |
Part C | ||
Water 125F/52C | 250 | ml |
Sodium Carbonate (monohydrate*) | 21.6 | g |
Sodium Sulfite (anhydrous) | 25 | g |
Potassium Bromide (10% solution) | 6 | ml |
Cold water to make | 500 | ml |
Mixing Instructions: Add chemicals in specified sequence. The 10% solution of potassium bromide can be made by dissolving 10 g of potassium bromide in 1000 ml of water. |
Dilution: Mix 1 part B with 1 part C for tray use. For tank use mix 1 part A with 5 parts C + 20 parts water. |
Usage: Starting point dev time: 5-10 mins. |
Notes *multiply amount by 0.833 if using Sodium Carbonate in anhydrous form. |