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Phosphorous Acid
Purity(crystal): 98% 98.5% 99%
Molecular weight 81.99
Density 1.65
Melting point 73
Boiling point 200
Usage
Used as the raw materials to make phosphorous, acid salt, used as the raw materials for making of plastic stabilizator in the plastic industry, used as reducer in chemical reaction, used as raw for water treatment. Also used in the olefin industry, agricultural chemical industry. chemicals.
Inspection items | The degree of the products | ||
Best Grade | Best Grade | First grade | |
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 |




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