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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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