Assay: ≥ 99.5 %
Appearance: White to pale yellow powder
Capacity: 300tons/year
Packaging: 25kgs/drum
Sample: available
3,3′,4,4′-Benzophenonetetracarboxylic dianhydride/BTDA CAS 2421-28-5
Description
CAS 2421-28-5 Details
Chemical Name: BTDA
CAS No.: 2421-28-5
Molecular Formula: C17H6O7
Molecular Weight: 322.23
Molecular Structure:
Appearance: White to pale yellow powder
CAS 2421-28-5 Typical Properties
| Item | Results |
| Appearance | White to pale yellow powder |
| Assay | ≥ 99.5 % |
| Melting point ℃ | 219~226 |
| Ca | ≦2PPM |
| Fe | ≦2PPM |
| Cu | ≦2PPM |
CAS 2421-28-5 Usage
Polymeric monomer for synthesizing high temperature resistant polymer materials.
Epoxy Resin Curing Agent: Used to produce epoxy resin products with extremely high heat distortion temperatures and excellent electrical insulation properties. Suitable for heavy-duty electrical insulation components and high-temperature encapsulation materials.
High-Performance Adhesives: Used in the aerospace and automotive industries to formulate structural adhesives that maintain extremely high bond strength at extreme temperatures.
Polymer Modification and Crosslinking: Used as a crosslinking agent to improve the chemical resistance, hardness, and creep resistance of various specialty engineering plastics.
CAS 2421-28-5 Packaging and Shipping
Packing: 25kg/drum
CAS 2421-28-5 Storage
Stored in cool dry ventilated place away from fire, heat, light, acids and food materials