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Products’ Name | Phosphorous acid |
Molecular formula | H3PO3 |
Structure formula | |
Molecular weight | 81.99 |
CAS No. | 13598-36-2 |
Density | 1.65 |
Melting point | 73°C |
Boiling point | 200°C |
Character | Achromatic crystal,density1.65g/m3,better hygroscopi-city,dissolved easily in the water,has corrosive characteristics |
Usage | Widely used as the raw materials to make phosphorous acid salt,used as the raw materials for making of plasticstabilizator in the plastic industry,used as reducer in chemical reaction,also used in the olefin industry, agricultural chemical industry and so on. |
| Packing | Film Plastic Knitted Bag,kraft paper complex bag innerlayer,double layers plastic bag with net weight of 25kg |
Quality Index(The Chemistry Industry HG/T2520-93Standards of the Peoples’Republic of China)
Inspection items | The degree of the products | ||
Best GradeProducts | Best GradeProducts | First gradeproducts | |
Main contents(counted with H3PO3) | 99 | 98.5 | 98 |
Iron(counted with Fe) | 0.001 | 0.0015 | 0.0020 |
Chloride(counted with C1) | 0.008 | 0.01 | 0.01 |
Sulfate(counted with SO4) | 0.001 | 0.002 | 0.002 |
Phosphate(counted with SO4) | 0.1 | 0.2 | 0.2 |
Complexion | White crystal | White crystal | White crystal |
Water solution experiments | White crystal | Clear and achromatic | Clear and achromatic |
Phosphorous acid