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          如東永泰化工有限公司(南通明嘉化工有限公司)
          Your demand is our pursuit Yongtai Chemical "May your dedication to provide quality products and perfect technical services.
           
          Phosphorous acid
          Bromopropane(NBP)
          2-Bromopropane,isopropyl br
          1-Bromobutane
          Monopotassium phosphite,Pot
          Dipotassium hydrogen phosph
          Diammonium hydrogen phosphi
          Calcium phosphite
          Disodium hydrogen phosphite
           
            ADD: Jiangsu Rudong Yangkou Industrial park
          CONTACT: Mr.Wang
          M.D.:
          +86-13806271196
          TEL: +86-513-81903818
          FAX: +86-513-81903828
          WEB: http://www.weooc.com
           
            PRODUCTS  
          Phosphorous acid

          (1) classified information

          Chinese name: phosphite
          English name: Phosphorous acid
          Molecular formula: H3PO3
          Molecular weight: 82
          CAS Number :13598 -36-2
          UN Number: 2834
          IMDG Code: 81502
          Hazard Class: 8

          (2) physical and chemical properties

          Appearance: white crystal
          Melting point: 73.6 ° C
          Boiling point: 200 ° C (decomposition)
          Solubility: soluble in water, alcohol, strong hygroscopicity.
          Density: 1.651g/cm ³
          Hazardous characteristics: corrosive, thermal decomposition of the highly toxic gas.

          (3) quality indicators

          HG/T2520-2006

                Test items Class
          Liquid phosphite
          Superior product First grade Qualified products
          Appearance White crystals Colorless transparent liquid
          Main content of (H3PO3 total) ≥% 99 98.5 98 80±0.5
          Iron content (Fe) ≤%    ≤% 0.0005 0.003 0.005 0.01
          Chlorine content (Cl) ≤% 0.005 0.01 0.02 --
          Sulfuric acid (SO4) ≤% 0.001 0.008 0.01 0.02
          Phosphoric acid content of (PO4 dollars) ≤% 0.1 0.2 0.2 0.8
          Heavy metals (as Pb) ≤% 0.0002 0.001 0.002 0.005
          Dissolved in water test (70% aqueous solution) Colorless and transparent without visible impurities ---

          Purposes: for plastic stabilizers and production of synthetic fiber and phosphite raw materials and pesticides glyphosate, ethylene intermediates, can also be used to produce highly efficient water treatment agent, ATMP and Asia potassium dihydrogen phosphate
          Packing: 25KG plastic woven bag (or according to customer design packing).
          Safety: Avoid and H blowing agent such as a total storage mixed operation is strictly prohibited contact with skin or eyes.

           
           
           
           
           
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