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        Polymerized ferric chloride

        Water treatment agent polymerization ferric chloride

        1, the subject content and suitable range

        This standard specifies the technical requirements and test methods of polymeric ferric chloride products.

        This standard applies to iron containing hydrochloric acid (sulfuric acid) as the main raw material of polymeric ferric chloride. The product is mainly used for industrial water and wastewater treatment.

        Molecular formula:[Fe2(OH)nCl6-n]m  O

        2, reference standard

        GB14591 Purifying agent Polymeric ferric sulfate
        GB4482 Purifying agent Ferric chloride
        GB/T601 Chemical reagents Titration analysis (capacity analysis)
            Preparation of standard solution
        GB/T602 Chemical reagents Preparation of standard solutions for the determination of impurities
        GB/T603 Chemical reagents Preparation of all preparations and preparations in test methods

        3, product classification

        Polymeric ferric chloride products divided into three categories.

        4, technical requirements

        Appearance: reddish brown viscous liquid.

        Polymerized ferric chloride should meet the requirements of Table 1.

        Quality Standard

        Project Index
        First type Second type Third type
        Density g/cm3(20°C) 1.35 1.30 1.20
        Pig iron content, % ≥ 12 10 8
        Reducing substances(Fe2+), % ≤ 0.3 0.3 0.3
        Basicity of the salt, % 5-30 5-30 5-30
        PH(1% Aqueous solution) 2.0-3.0 2.0-3.0 2.0-3.0
        Insoluble matter content, % ≤ 0.2 0.2 0.2
        As, % ≤ 0.0020 0.0020 0.0020
        Pb, % ≤ 0.0040 0.0040 0.0040


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