Pyromellitic dianhydride
Pyromellitic dianhydride (PMDA), CAS 89-32-7, with the molecular formula C10H2O6 and a molecular weight of 218.12 g/mol, is a key organic compound characterised by its dianhydride structure. It serves as a crucial monomer in the synthesis of high-performance polymers, particularly polyimides, known for their exceptional thermal stability and mechanical strength. PMDA is widely employed in advanced materials science and polymer research.
- IUPAC
- Benzene-1,2,4,5-tetracarboxylic dianhydride,PMDA
- Synonyms
- Benzene-1,2,4,5-tetracarboxylic dianhydridePMDA
Synthesis of Polyimides
Pyromellitic dianhydride is a primary monomer used in the production of polyimides. These polymers exhibit outstanding thermal stability, excellent mechanical properties, and good electrical insulation, making them suitable for high-temperature applications.
Curing Agent for Epoxy Resins
PMDA can act as a curing agent for epoxy resins, enhancing their thermal and chemical resistance. This application is valuable in the formulation of advanced adhesives and composite materials.
Monomer for Specialty Polymers
Beyond polyimides, it is utilised in the synthesis of other specialty polymers and copolymers, contributing unique properties such as rigidity and thermal performance to the final material.
Research and Development
As a versatile building block in organic synthesis, PMDA is frequently used in research laboratories exploring new materials and chemical processes.
| Molecular weight | 218.12 |
|---|---|
| Empirical formula | C10H2O6 |
| Assay | 97% |
| Boiling point | 397-400 °C(lit.) |
| Melting point | 283-286 °C(lit.) |
Hazard statements
- H317May cause an allergic skin reaction
- H318Causes serious eye damage
- H334May cause allergy or asthma symptoms if inhaled
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P342
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | 380 °C / 716 °F |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 41-42/43 |
| Safety statements (S) | 22-24-26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Pyromellitic dianhydride used for?
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Pyromellitic dianhydride (PMDA) is primarily used as a monomer for synthesising high-performance polyimides, renowned for their thermal stability and mechanical strength. It also finds applications as a curing agent for epoxy resins and in the development of other specialty polymers.
What is the CAS number and formula for Pyromellitic dianhydride?
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The CAS number for Pyromellitic dianhydride is 89-32-7, and its molecular formula is C10H2O6.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Pyromellitic dianhydride with an assay of 97%. This product is not represented as USP, BP, EP, or any other pharmacopoeia grade.
What are the main hazards associated with handling Pyromellitic dianhydride?
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Pyromellitic dianhydride (CAS 89-32-7) is a danger. It can cause skin sensitisation (H317), serious eye damage (H318), and respiratory sensitisation (H334). Proper personal protective equipment including a dust mask (type N95 US), eyeshields, face shields, and gloves is essential. Avoid dust formation and inhalation.
How is Pyromellitic dianhydride packaged and exported?
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Pyromellitic dianhydride is carefully packaged to ensure product integrity during transport. Tech Serve Solutions, as a global supplier and exporter, adheres to international shipping regulations for chemical products.
How can I request a sample or quote for Pyromellitic dianhydride?
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To request a sample or a quote for Pyromellitic dianhydride, please contact our sales team through the website or provide your inquiry details via email.
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