Recipe

1. Dissolve 5g of basic fuchsin in 900ml of boiling distilled water
2. Cool to approximately 50^oC and slowly add 100ml of 1N HCl
3. Cool to approximately 25^oC and dissolve 10g of K₂S₂O₅
4. Shake for 3 minutes and incubate in the dark at room temperature for 24 hours
5. Add 5 grams of fine activated charcoal and shake for 3 minutes
6. Filter solution (should be clear)
7. Store at 4^oC in a foil covered bottle