Industrial Phosphorous acid
Molecular formula：H3PO3
Properties： colorless solid or colorless liquid.
Quality specification：HG/T2520-2006
Appearance： white crystal or colorless transparent liquid
Relative Molecular mass: 81.99
Item |
First grade |
Qualified product |
Mass fraction of Phosphorous acid (H3PO3)/% ≥ |
98.000 |
97.000 |
Mass fraction of chloride(as CI)/% ≤ |
0.010 |
0.020 |
Mass fraction of Fe/% ≤ |
0.001 |
0.005 |
Mass fraction of phosphate(as PO4)/% ≤ |
0.200 |
0.600 |
Mass fraction of Sulfate(as SO4)/% ≤ |
0.008 |
0.010 |
Uses：used as reductant whitener, material of phosphite, pesticide intermediate .
Packing：25 kg/bag or drum.
Fire Methods: fire extinguisher of carbon dioxide or dry yellow sand.
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