Foreign Name: Tetrachlorophthalic anhydride
Other Names: 4,5,6,7-Tetrachloro-1,3-isobenzofuran, Tetrachlorophthalic anhydride, Tetrachlorophthalic anhydride
Chemical Formula: C8Cl4O3
Molecular Weight: 285.90
CAS Registry Number: 117-08-8
EINECS Registry Number: 204-171-4
Melting Point: 255℃ (sublimation)
Boiling Point: 366-371℃
Appearance: Colorless needle-like crystals or powder
Can be used in polyesters and epoxy resins, but less effectively than tetrachlorophthalic anhydride. Tetrachlorophthalic anhydride is also an intermediate in the synthesis of pesticides (rice blast phthalate), dyes, pharmaceuticals, plasticizers, fire-retardant paints, etc. It is used as an intermediate for phthalocyanine green pigments and phthalocyanine dyes, and is also a raw material for alkyd resins. This product is used as a reactive combustion aid and curing agent for flame-retardant epoxy resins. This product is also an intermediate in the organic synthesis of pesticides, dyes, pharmaceuticals, plasticizers, fire retardant paints, etc.
