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      Phosphorus trichloride
      Phosphorus oxychloride
      Phosphorous acid
      Hydrochloric acid
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      Product Name Phosphorous acid
      CAS RN 13598-36-2
      EINECS Number 237-066-7
      Molecular Formula H3PO3
      Molecular Weight 88.0434
      Physical and chemical property Colorless crystals
      Use Used as a reducing agent, nylon whitening agent, also used as Phosphorous acid salt, raw
              materials, pesticide intermediates.
      Structural Formula
       
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