Product name: TCPA
Chemical name: Tetrachlorophthalic anhydride
Synonyms: tetrachloro-1,2-benzenedicarboxylic acid anhydride; Niagathal; 4,5,6,7-tetrachloro-1,3-isobenzofurandione;
Molecular formula: C8Cl4O3
CAS No: 117-08-8
Appearance: white crystal
Purity: 99% min.
Melting point: 254-256 C
Boiling point: 371 C
Flash point: 362 C
Loss on drying: 0.5% max.
Free Chloride: 10 ppm max.
Hexachlorobenzene: 0.1% max.
Content of Iron: 10 ppm max.
Insoluble metter in alkali: 0.5% max.
Application: intermediates mainly for pesticides, dyes and pharmaceutical.
Packing: net 25kgs/pp bag.