Tetrachlorophthalic Anhydride

CAS NO:117-08-8
Common Name: tetrachlorophthalic anhydride
Molecular formula: C8CL4O3
Molecular weight:285.9

Appearance: White crystal or powder
Content,GC: 99.0% min.
Main inpurity: 0.5% max.
Melting point: 255-257 degree C
Loss of drying: 0.5% min.
APHA color: 50# max.
Free acid: 0.1% max.
Free chlorine : 10PPM max.
Hexachlorobenzene: 0.1% max.
Iorn: 10PPM max.
Insoluble matter in alkali: 0.5% max.
Solubility in dimethyl benzene, 4.7g/100ml: All

Applications: used to pharmaceutics pesticides, dyestuff production
Packing: plastic knitted bag, 25Kgs