Phosphorous acid executive standard: HG/T2520-93

Molecular formula: H₃PO₃
Molecular weight: 81.99
English name: Phosphorous acid
Appearance: white crystal
Property: It is corrosive. And harmful product of combustion is phosphorane and phosphorus oxide; harmful on skin and environment; having pollution on water
Uses: Raw material in manufacturing of phosphate and plastic stabilizer; as reducing agent in chemical reaction; applied in synthetic fiber and pesticide industry
Packing and storage: Inner packing adopts double layer vinyon film bag; outer packing adopts full open iron drum or fiberboard drum in seal