Edwal Sodium Sulfite is a photo-grade powder, that may be used in any photographic formula.
Sodium Sulfite is packed in an unbreakable 2 lb. plastic jar containing a speed cups.
- When added to FG7 1:15 dilution in a 9% solution it produces a fine enough grain on medium and high speed films for practically any degree of enlargement
- By adding 10 grams of Edwal Sodium Sulfite per liter to exhausted fixer, it helps stabilize the fixer for silver recovery
- It is also used commonly to clear Polaroid black & white negatives in the Field or in the studio