Phosphorous acid
Compounds
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Phosphorous acid is the compound described by the formula H₃PO₃. This acid is diprotic, not triprotic as might be suggested by this formula. Phosphorous acid is an intermediate in the preparation of other phosphorus compounds. Wikipedia
Formula: H3PO3
Molar mass: 82 g/mol
Density: 1.65 g/cm³
Boiling point: 392°F (200°C)
Acidity: Phosphorous acid
Hazard statements: H302, H314
Melting point: 73.6 °C (164.5 °F; 346.8 K)