Product name: Ortho phosphorous acid
Molecular formula: H3PO3
Molecular weight: 82
Physiochemical properties:
Specific gravity: 1.651(21.2°C)
Melting point: 73.6°C
Boiling point: 200°C(decomposed)
Properties: colorless crystal, easily soluble in water, soluble in alcohol.
Quality of industrial ortho phosphorous acid is strictly accordance with industrial standard HG/T2520-93:
Index name |
Grade |
First quality |
Qualified products |
Ortho phosphorous acid, % ≥ |
98.0 |
97.0 |
Chloride(Cl), % ≤ |
0.01 |
0.02 |
Sulphate(SO4), % ≤ |
0.008 |
0.01 |
Phosphate(PO4), % ≤ |
0.2 |
0.6 |
Iron(Fe), % ≤ |
0.001 |
0.005 |
Use:Used as reducing agent, nylon whitener, plastic thermometer, synthetic fiber in plastic industry; as materials for producing weedicide, bactericide and water stabilizer in pesticide industry.
Packing:50kg and 20kg metal pail or plastic bag with two layers of lining. Stored in dry and draughty place.
Transportation:It should be covered in transportation. Avoid drench, moisture.
Storage:Stored in cool and dry place.
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