Pyromellitic Dianhydride

Pyromellitic Dianhydride (PMDA, CAS 89-32-7) is a white crystalline powder with molecular formula C₁₀H₂O₆ and molecular weight 218.12. It is a highly reactive acid anhydride that hydrolyzes to pyromellitic acid when exposed to moisture. PMDA is widely used as a key monomer in the production of high-performance polymers and coatings due to its excellent thermal stability, mechanical properties, and oxidative resistance.

Synonyms:

PMDA, Pyromellitic anhydride, 1,2,4,5-Benzenetetracarboxylic dianhydride, 1,2,4,5-Benzenetetracarboxylic 1,2:4,5-dianhydride, BDFtetron, Benzo[1,2-c]
Formula:

C₁₀H₂O₆
CAS NO.:

89-32-7
Package:

25kg/bag, 500kg/bag
Certificate:

ISO9001, Reach

Our Achievement

Global Reach：Our Pyromelliticdianhydride has been successfully exported and applied in key markets across the globe, including but not limited to South Africa, Indonesia, Thailand, Vietnam and Brazil. Our product has consistent quality and ability to meet diverse international standards.

Equivalent Alternatives： Our product has served as a reliable alternative to Lonza, BASF and Mitsui for several local manufacturers, helping them reduce costs with comparable (or even superior) results in performance.

Key Applications

1. Polyimide Production
PMDA is the primary monomer for synthesizing polyimide polymers and films, accounting for approximately 93% of its market usage. These polyimides exhibit exceptional thermal stability, mechanical strength, and self-extinguishing properties, making them ideal for flexible displays, printed circuit boards, and high-temperature electrical insulation materials.
2. Epoxy Resin Curing Agent
As a curing agent for epoxy resins, PMDA enhances the thermal and mechanical properties of adhesives, coatings, and molding powders. The cured products achieve glass transition temperatures up to 300°C, with thermal deformation temperatures reaching 200-250°C, making them suitable for high-performance electrical insulation applications.
3. Polyester Resin Crosslinking
PMDA acts as an effective crosslinking agent for polyester resins, improving their mechanical strength, thermal stability, and chemical resistance. This application is particularly valuable in powder coatings, adhesives, and composite materials requiring enhanced performance characteristics.
4. Plasticizer Production
PMDA reacts with alcohols to produce heat-resistant plasticizers for PVC cables and medical-grade plastics. These plasticizers offer superior thermal stability compared to conventional phthalate-based alternatives, making them suitable for high-temperature applications.
5. Surfactants and Emulsifiers
PMDA is used in the synthesis of biodegradable "green" surfactants and emulsifiers. These compounds find applications in personal care products, detergents, and industrial formulations where environmental compatibility is a priority.
6. High-Performance Coatings
Due to its excellent mechanical, thermal, and oxidative stability properties, PMDA is employed in the preparation of high-performance coatings for electrical insulation, powder coatings, and advanced coating systems. These coatings offer superior protection and durability in demanding environments

The main detailed uses of the product

polyimide resin synthesis

Serves as monomer for high-performance polyimide resins, used in高端 applications like flexible circuit boards and insulating films in electronics industry.
Epoxy Resin Curing Agent

Widely used as a room-temperature curing agent for epoxy resins in coatings, adhesives, flooring, and composites. It offers a balanced cure profile, good adhesion, and chemical resistance in the cured product.
Epoxy Resin Curing Agent

Widely used as a room-temperature curing agent for epoxy resins in coatings, adhesives, and flooring compounds. It provides fast cure, high crosslink density, and excellent chemical and heat resistance in the final product.
Polyamide Resins Production

Used in the synthesis of polyamide resins, which are employed in hot-melt adhesives, inks, and coatings, providing good flexibility and adhesion.

Why Choose Our Pyromellitic Dianhydride?

High Purity Guarantee: Our PMDA products achieve 99.5% purity through advanced purification processes, meeting the needs of high-end applications and ensuring consistent performance across all industrial uses.

Technical Expertise: With extensive experience in chemical manufacturing, we provide comprehensive technical support and customized solutions to meet specific customer requirements.

Quality Assurance: Strict quality control from raw materials to final products ensures every batch meets international standards. We provide COA (Certificate of Analysis) and implement rigorous inspection processes.

Competitive Pricing: We offer competitive pricing with flexible MOQ (minimum order quantity) starting from 1kg, making our products accessible for both small-scale and bulk requirements.

Global Delivery: With efficient logistics networks, we ensure timely delivery worldwide, supported by reliable packaging and storage solutions to maintain product integrity

Commitment to Quality and Innovation

We are committed to providing high-quality Pyromelliticdianhydride that meets stringent international standards. Our focus on innovation and sustainability ensures that our products not only enhance your applications but also align with evolving environmental regulations and industry trends.

Kevin Bi

Sales Specialist

+86 15054213961

info@achilleschem.com

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