| Standard |
HG/T2520-2006 |
| Item |
Index(%) |
Test Result(%) |
| H3PO3(%) |
≥99 |
99.12 |
| Chloride (as Cl) (%) |
≤0.01 |
0.01 |
| Fe(%) |
≤0.0015 |
0.0012 |
| Phosphate PO4 (%) |
≤0.1 |
0.08 |
| Sulphate SO4 (%) |
≤0.006 |
0.006 |
Phosphorous acid is a Inorganic compound with the chemical formula of H3PO3. It is a white crystalline powder, which is easily soluble in water and ethanol. It is slowly oxidized to orthophosphoric acid in air and decomposed into orthophosphoric acid and Phosphine when heated to 180 ºC. It is mainly used as the raw material for manufacturing plastic stabilizers, as well as Synthetic fiber and phosphite.
It is mainly used as the raw material for manufacturing plastic stabilizer, as well as Synthetic fiber and phosphite.
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