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Phosphorous acid
Product introduction
Chemical Name: Phosphorous Acidmolecular formula:H3O3P
molecular weight:81.996
CAS No.: 13598-36-2
EINECS NO.: 237-066-7
Property: white crystal, relative density 1.651 (21.2°C), melting point (73.6°C), boiling point 200°C (decomposition), easily soluble in water or alcohol, slowly oxidized into orthophosphoric acid in air, heated to 180°C decompose into orthophosphoric acid and phosphine, it has strong hygroscopicity, deliquescence and corrosiveness.
Items | Specification | Results |
Appearance | White crystal | confirm |
Content (H3PO3),% | 99% min. | 99.31% |
Iron (as Fe),% | 10ppm max | 10ppm |
Chloride (as Cl),% | 0.001%max | ＜0.001% |
Sulphate (as SO4),% | 0.001%max | ＜0.001% |
Phosphate (as PO4),% | 0.0005%max | ＜0.0005% |
smell | None | confirm |
Conclusion:The subject material conforms to the HG/T2520-93 Standards. | ||
Packing:25kg woven bag,all kinds of package according to the customer's request.
Storage: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. The packaging is required to be sealed and not in contact with the air. It should be stored separately from alkalis, and should not be mixed. Storage areas should be provided with suitable materials to contain spills.
Application:a raw material for phosphite, dibasic lead phosphite and organic household medicines, a stabilizer for polycarbophospholipids, an antioxidant for plastic1010, and a reagent for the determination of mercury, gold, silver, lead, iodine, acid, etc.plastic stabilizers, raw materials for the production of synthetic fibers and phosphites, intermediates for pesticides glyphosate and ethephon, and also for the production of high-efficiency water treatment agents.