Title: Sodium Phosphite
CAS Registry Number: 13708-85-5
Molecular Formula: HNa2O3P
Molecular Weight: 125.96
Percent Composition: H 0.80%, Na 36.50%, O 38.11%, P 24.59%
Line Formula: Na2HPO3
Derivative Type: Pentahydrate
Properties: White, hygroscopic cryst powder. Heat of formation (25°): -684.2 kcal/mole. Freely sol in water. Keep well closed.