This is 100g of anhydrous Sodium Sulfite from Photographers' Formulary. It is most commonly used as a preservative in developing agents and is also an active energizer in Amidol development. It is also used within acid fixing baths and as a blackener for negative intensification processes.
In the Box
- Common Developing Agent Preservative
- Energizer for Amidol Developer
- Used in Acid Fixing Bath
- Blackener for Negative Intensification
- Photographers' Formulary Sodium Sulfite | Anhydrous, 100g