Phosphorous acid
Chemical name: Phosphorous acid
Product name: Phosphorous acid
Molecular formula: H3PO3
Molecular weight: 82.00
Properties: white crystal, assay > 98%, ferric ions < 20PPM.
Standard: HG/T2520-93 of Industrial standard.
Technical Index
| Item |
Index |
| First grade |
Qualified product |
| Appearance |
white crystal |
white crystal |
| Main assay %≥ |
98.0 |
97.0 |
| Chloride %≤ |
0.01 |
0.02 |
| Ferric ions %≤ |
0.001 |
0.005 |
| Phosphate %≤ |
0.2 |
0.6 |
| Sulfate %≤ |
0.008 |
0.01 |
Uses: An important pharmaceutical and chemical intermediate, and auxiliary of plastic, used to produce organophosphorus pesticides, or used in the production of synthetic fiber.
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