3,3',4,4'-benzophenonetetracarboxylic dianhydride
Synonyms:Benzophenone-3,3',4,4'-tetracarboxylic dianhydride;
4,4'-Carbonyldiphthalic anhydride; BTDA
Molecular Formula:C17H6O7
Molecular Weight:322.23
CAS:2421-28-5
EINECS:219-348-1
Melting point:219-226 ºC
Sublimation:220-230 ºC
Flash point:324 ºC
Water solubility:REACTS
Purity:99%
BTDA is important monomer of polyimide, and used for production of polyimide material. The material has high temperature resistance, low temperature resistance, corrosion resistance, radiation resistance, insulation, shock resistance, excellent performance. Can be made into structure parts, laminates, films, adhesives, coatings, insulation materials and reinforcing material, etc., can be widely used in the field of aerospace, electrical / electronics, shipbuilding, automobile, precision machinery.