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- Part
A
- Water
750 ml
-
Sod. Sulphite (anhyd.) 6.3 g
- Hydroquinone
7.0 g
-
Citric Acid 0.7 g
-
Pot. Bromide 3.5 g
- Water
to make 1.0 L
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- Part
B
-
Water 750 ml
-
Sod. Carbonate 30 g
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Sod. Hydroxide 4.2 g
-
Water to make 1.0 L
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