Pyromellitic Dianhydride (PMDA), identified by the CAS number 89-32-7, is a crucial organic chemical compound that holds significant industrial importance, particularly in the synthesis of advanced polymers and high-performance materials. As a leading Pyromellitic Dianhydride manufacturer and supplier based in China, we are dedicated to providing detailed insights into the properties and applications of this vital intermediate to help industry professionals make informed decisions.

Physically, Pyromellitic Dianhydride typically presents as a white powder. Its molecular formula is C10H2O6, and it is characterized by a high melting point, generally ranging from 283°C to 286°C. This robust thermal characteristic is a key reason for its use in applications requiring high-temperature resistance. Chemically, PMDA is a double carboxylic acid anhydride. Its structure allows it to readily react with amines, forming diimides, which are essential for the creation of polyimide polymers. The high purity (often exceeding 99.5%) that we ensure in our manufacturing processes is critical for achieving predictable and superior results in polymerization and formulation.

The industrial significance of PMDA is multifaceted. Its primary application is as a monomer in the production of polyimide films and resins, such as Kapton. These materials are celebrated for their exceptional thermal stability, excellent mechanical strength, low thermal expansion, and superior electrical insulating properties. This makes them indispensable in the electronics industry for flexible circuits, wire insulation, and semiconductor manufacturing. Procurement managers and R&D scientists seeking to buy Pyromellitic Dianhydride for these demanding applications can rely on our consistent supply.

Furthermore, PMDA serves as a vital curing agent for epoxy resins, enhancing the properties of adhesives, coatings, and molding compounds. Its ability to create densely cross-linked structures improves the thermal, chemical, and mechanical resistance of the cured epoxy systems. This versatility underscores why PMDA is a sought-after intermediate across various sectors. As a dedicated Pyromellitic Dianhydride supplier, we ensure that our product meets the quality expectations of these diverse applications.

In summary, understanding the physical and chemical properties of Pyromellitic Dianhydride is essential for harnessing its full potential in material science and industrial applications. We, as a primary manufacturer and supplier of PMDA (CAS 89-32-7) from China, are committed to delivering the quality and reliability you need. We encourage you to contact us for your bulk purchase inquiries and to explore how our high-purity Pyromellitic Dianhydride can contribute to your product innovation and manufacturing success.