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          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