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Phosphorous acid

Details for Phosphorous acid

Phosphorous acid


Inorganic chemicals/Inorganic acids

Phosphorous acid
CAS NO: 13598-36-2
EC NO: 237-066-7
Molecular Formula: H3PO3
Molecular Weight: 81.9957
Specification: Phosphorous acid 99%
InChI: InChI=1/3H2O.H3P/h3*1H2;1H3/q;;;+3/p-3
Packing: 25KG bag with pallet
Product description:

CAS No.: 497-19-8
H.S. Code: 2811199090
UN. No.: 2834
Molecular Formular:H3PO3
Molecular Weight: 82.00
Appearance: white crystal
Packing: 25kg/bag
Technical Datasheet

Top GradeThe first grade
AppearanceWhite crystalWhite Crystal
Purity(H3PO3)% ≥99.0%min98.5%min
Phosphate % ≤0.2%max0.2 %max
Chloride (Cl) % ≤0.01%max0.02%max
Sulphate % ≤0.008%max0.008%max
Iron(Fe) % ≤0.003%max0.005%max
Water Solubility TestExcellentExcellent

Colour less crystalline. Density 1.65g/cm3. Easily deliquesce in air and soluble in water. Corrosiveness

Raw material of the manufacture for phosphite and plastic stabilizer, synthetic fiber, dibasic phosphorous plumbum , glyphosate, water treatment ATMP and potassium phosphine . Using as reducing agent in chemical reaction, and pesticide middle –object.


Uses: nylon brighter, plastic stabilizer, synthetic fibre, dibasic phosphorous Plumbum, Glyphosate, Water treatment ATMP and Potassiam phosphibe
Synonyms: Phosphonic acid;hydrogen phosphonate;phosphorus(+3) trihydride cation trihydroxide;Orthophosphorus;Orthophosphorous acid;Ortho-Phosphorous acid;
Molecular Structure: Phosphorous acid 13598-36-2
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