8663. Sodium Phosphite

Nomenclature

CAS number: 13708-85-5

HNa₂O₃P; mol wt 125.96.

H 0.80%, Na 36.50%, O 38.11%, P 24.59%.

Na₂HPO₃.

Pentahydrate.

White, hygroscopic cryst powder. Heat of formation (25°): 684.2 kcal/mole. Freely sol in water. Keep well closed.