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                    Tetrachlorophthalic Anhydride(TCPA)
                    【Product Name】Tetrachlorophthalic Anhydride(TCPA)
                     
                    【Product details】

                    Molecular formula: C8Cl4O3
                    CAS NO.: 117-08-8
                    Product Application: For medicine, painws, dyes, flame retardants and so on.
                    Specification:

                    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

                    Package:Lining plastic woven bag,  net wt:25kg.  

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