Phosphorous acid
Synonyms:
Orthophosphorous acid; Phosphonic acid
CAS No.: 13598-36-2
Ec no.: 233-663-1
Molecular weight: 81.996
Molecular formula: H3po3
Density: 1.6510
M. P.: 73.6° C
B. P.: 200° C (decomposing at 180° C)
Application:
Phosphorous acid is used in synthesis of phosphite salts, plastic stabilizers, pesticides, water-treatment chemicals, phosphite fertilizers for fruits like citrus and orange, vegetables, economic crops etc., cosmetics additives.
Standard packing:
1) 25kgs/PP woven bag with double PE inner bags, 20-25mt/20' FCL
2) 500, 1000kgs/jumbo bag, 20mt/20' FCL
3) iron drum or plastic drum
4) for 70% solution, packing is 25kg/plastic pail, 250kg/plastic drum or 1300kg/ibc
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Risks and safety info
Class 8; Un2834; Pg iii
Specification:
| Items | Super Grade | Best Grade | First Grade |
| content (%) ≥ | 99.0 | 98.5 | 98 |
| Iron (%) ≤ | 0.001 | 0.0015 | 0.0020 |
| chloride (%) ≤ | 0.008 | 0.01 | 0.01 |
| Sulphate (%) ≤ | 0.001 | 0.002 | 0.002 |
| Phosphate (%) ≤ | 0.1 | 0.2 | 0.2 |
| Complexion | White crystal | White crystal | White crystal |
| Water solution experiments | White crystal | Clear and achromatic | Clear and achromatic |
| Packing | 25kg PP bag with PE liner, 500kg , 1000kgs |
| Loading | 22~25mt/20fcl |
HS CODE:281119900
Audited Supplier 
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