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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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