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    Shaoxing Huawei Chemical Co.,Ltd.
    Main products
    · Triphenylphosphine
    · Tetrachlorophthalic Anhydride
    · p-Cresol
    · Sodium sulfite
    · Sulfuric acid
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    · Binhai:Shaoxing Huawei Chemical Co.,Ltd.
    · Tel: +86-575-85620368   13957559832
    · Paojiang:Shaoxing Huali Fine Chemical Co., Ltd.
    · Tel: +86-575-85726755   13867572782
    · Pingshui:Shaoxing Huawei Chemical Co., Ltd.
    · Tel: +86-575-85767147   13505751287
    · E-mail: [email protected]
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    Tetrachlorophthalic anhydride

    【English name】:Tetrachlorophthalic Anhydride
    【English initial】:TCPA
    【Chinese name】:Tetrachlorophthalic anhydride
    【Chinese alias】:Tetrachlorophthalic anhydride
    【CAS】:117-08-8
    【Molecular formula】:C8Cl4O3
    【Relative molecular weight】:285.9
    【Product quality】
    Tetrachlorophthalic anhydride
    Item

    Index

    Fine product

    Superior grade

    First grade

    Second grade

    Qualified product

    Appearance

    White crystal or powder

    Purity/%≥

    Gas phase chromatography

    99.0

    99.0

    99.0

    Liquid phase chromatography

    98.5

    99.0

    Melting point/℃≥

    256.0

    255.5~258.0

    256.0~258.0

    255.5~258.0

    255.5~258.0

    Drying loss/%≤

    0.50

    0.50

    0.50

    0.50

    Solubility in xylene/%

    100

    100

    100

    Chroma≤

    in Xylene

    50

    150

    in Methanol

    150

    In ethanol

    10

    Free acid/%≤

    0.50

    0.50

    0.50

    0.50

    Free chlorine/%≤

    0.001
    (10ppm)

    0.001
    (10ppm)

    0.001
    (10ppm)

    0.001
    (10ppm)

    Iron content/ppm≤

    30

    10

    10

    10

    Alkali insoluble/%≤

    0.50

    Hexachlorobenzene/%≤

    0.015
    (150ppm)

    0.100
    (1000ppm)

    0.100
    (1000ppm)

    0.100
    (1000ppm)

    Sulfate /%≤

    0.010
    (100ppm)

    Tetrachloride phthalic acid
    /%≤

    0.7

    Water/%≤

    0.04

    【Packing】:Lining plastic woven bag, nwt 25kg.
    【Use】:For medicine, painws, dyes, flame retardants and so on.

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