Copper Toner ( Red )
- Solution A
- water :- 700ml
- Copper Sulphate Cryst. :- 25 grammes
- Potassium Citrate :- 110 grammes
- Water make up to :- 1000ml.
- Solution B
- water :- 700ml.
- Potassium ferricyanide :- 20 grammes.
- Potassium citrate :- 110 grammes.
- Water to :- 1000ml.
Use one part A + one part B. The results range from warm black to purplish-red, depending on how long the print is immersed. Wash for 30 minutes.
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