Nuclear fast red solution Preparation and Recipe

To prepare L  Nuclear fast red solution

Table 1. Recipe

1. Prepare 0.8 L of distilled water in a suitable container.
2. Add 1 g of Nuclear fast red to the solution.
3. Add 50 g of Aluminum sulfate octadecahydrate to the solution.
4. Add distilled water until the volume is 1 L.
5. Heat with stirring until nearly boiling, then leave overnight to cool. There is a substantial residue of insoluble material, which must be removed by decanting and filtering. The solution keeps for ~1 year; it may need to be filtered before each use.