benzophenonetetracarboxylic dianhydride CAS NO.2421-28-5

product name: 3,3',4,4'-benzophenonetetracarboxylic dianhydride

abbreviated name: btda

item no.: solverpi-monomer btda

cas:2421-28-5

einecs:219-348-1

molecular formula: c₁₇h₆o₇

formula weight:322.23

constitutional formula:

physicochemical property:

melting point:220-225 °c（lit.）

boiling point:320°c 5mm

density:1,57 g/cm³

vapor density:1.4 （vs air）

vapor pressure:<0.1 mm hg （ 0 °c）

flash point:324 °c

solubility:dmf: 0.1 g/ml, clear

water solubility:reacts

sensitivity:moisture sensitive

the product index:

the use of product: 3,3',4,4'-benzophenonetetracarboxylic dianhydride,btda abbreviation,this product is a polyimide monomer and aromatic diamine polymerization production polyimide materials.it has excellent performance with high temperature resistant, good low temperature resistance, corrosion resistance, radiation resistance, insulation, impact resistance and so on. can be made in structure, laminated board, films, adhesives, foam, high temperature fiber, curing agent, coating, insulation and reinforced material and so on. it is widely used in aviation/aerospace, electrical/electronics, shipbuilding, automobile, precision machinery, and other fields.

storage: it can be placed in dry and ventilated environment for three years under the condition of complete packaging.

packing:2.5kg/bag,25kg/drum.