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  3. Ortho-Phosphorous acid

    Produce name: Ortho-Phosphorous acid
    Molecular formula:H3PO3
    Molecular weight: 82
    Application:
    our factory produces following two kind of phosphorous acids divides byraw material : (1)Take phosphorus trichloride as the raw material and hydrolyze it to produce crystalline industrial phosphoro
    Specifications:
     

    Item

    Crystal Index(%)

    Liquid Index (%)

    Phosphorus trichloride method

    Relic solution method

    Phosphorus trichloride method

    Relic solution method

    main content (as H3PO3)≥

    99.0

    98.0

    77-80

    77-80

    chloride content (as Cl)≤

    0.01

    0.01

    0.03

    0.03

    iron content (as Fe)

    0.0015

    0.002

    0.003

    0.005

    phosphate content (as PO4)≤

    0.2

    0.2

     

     

    sulphate content (as SO4)≤

    0.008

    0.008

     

     

    Appearance

    White crystal

    achromatism or pale-yellow liquid

     

    Application:
    This product mainly is suitable for the raw material for production, such as the phosphite, the synthetic fiber and the organic phosphorus agricultural chemicals and so on. Also uses in producing h

    Packing: 
    (1) crystal: 25kgs/bag, inner packaging adopts double ply polythene film bag, external packaging is plastic woven bag B: 50kgs in paper drum or metal; C: 1000kgs in big bag D: According to buyer re

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