Packing: 1KG/5KG/10KG Plastic bottles Storage:Clean, dry, ventilated environment; containers closed; Transportation: Non-dangerous goods, avoid violent oscillation, can not be inverted
3,3',4,4'-Benzophenonetetracarboxylic dianhydride(BTDA) is an important material for synthesizing polyimide. Polyimide materials prepared by BTDA have excellent processability, excellent thermal stability, outstanding insulation and mechanical properties.
| Basic information | |
| Product Name | 3,3',4,4'-Benzophenonetetracarboxylic dianhydride |
| Synonyms | 4,4′-Carbonyldiphthalic anhydride；Benzophenone Tetracarboxylic Dianhydride;BTDA;2421-28-5;BTDA Anhydride;BTDA Dianhydride |
| CAS | 2421-28-5 |
| Molecular Formula | C17H6O7 |
| Molecular Weight | 322.23 |
| EINECS | 219-348-1 |
| Chemical Properties | |
| Melting point | 218-222 °C (lit.) |
| Boiling point | 320°C 5mm |
| Density | 1,57 g/cm3 |
| Storage temp | Inert atmosphere,Room Temperature |
| Solubility | DMF: 0.1 g/mL, clear |
| Form | Needles or Crystalline Powder |
| Color | Off-white to brown |
| Water Solubility | REACTS |
| Safety Information | |
| Hazard Codes | Xi |
| Risk Statements | 36/37 |
| Safety Statements | 25 |
| WGK Germany | 1 |
BTDA Anhydride(2421-28-5) is an important monomer for synthesis of polyimides such as Matrimid5218 and P84. BTDA Dianhydride is widely used in new material fields such as gas separation membrane, polyimide foam, high-temperature fiber, aircraft structural parts, flexible circuit board, curing agent, etc.
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