SolverPI-Monomer BTDA

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: DETERMINATION STANDARD、GRADE Excellent grade First grade Up to grade Appearance White White or light yellow powder Purity ≥99.5% ≥99.0% ≥98.5% Melting point 225.5～224.5℃ 222.5～224.5℃ 220.0～222.5℃ K ≤2PPm ≤5PPm Ca ≤2PPm ≤5PPm Al ≤2PPm ≤5PPm Fe ≤2PPm ≤5PPm Cu ≤2PPm ≤5PPm Na ≤2PPm ≤5PPm Zn ≤2PPm ≤5PPm 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.