Phthalic anhydride
Molecular Formula: C8H4O3
CAS NO. : 85-44-9 EINECS201-607-5 UN: 2214
Main application:
Phthalic anhydride is an important organic chemical raw material, mainly used in the production of plastic plasticizers, alkyd resins, dyes, unsaturated resins and certain pharmaceuticals and pesticides. Currently widely used in chemical, pharmaceutical, electronics, agriculture, coatings, fine chemicals and other industrial sectors.
Physicochemical properties:
Appearance White crystals with a choking odor
Purity 99.9%
Refractive index 1.646
Stability Incompatible with strong oxidants, strong bases, moisture, and strong acids. Dust may mix with air to form an explosion.
Flashing point 152°C
Vapor pressure 0.01mmHg at 20°C
Storage condition The warehouse is ventilated at low temperature and stored separately from the oxidant.
Melting point 131-134 °C(lit.)
Density 1.53 g/cm3 at
Boiling point 284 °C(lit.)
Packing: 25kg woven bags or cardboard drums are packed and shipped