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          2. Huai'an Huayuan Chemical Co.,Ltd.
            Industrial grade phosphorus trichloride

            Index name

            excellent grade

            first grade

            qualified

            Appearance

            colorless transparent or light yellow liquid

            Phosphorus trichloride content%

            ≥99.0

            ≥98.5

            ≥98.0

            Free phosphor content%

            ≤0.0005

            ≤0.0020

            ≤0.0080

            Boiling range(74.5-77.5°C)(v/v)%

            ≥97.0

            ≥96.0

            ≥95.0

            Phosphoric acid content(PO4-2)

            0.2

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