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      1. 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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