Key Properties
Chemical Name : Purified Isophthalic Acid
CAS No. : 121-91-5
Molecular Formula : C₈H₆O₄
Molecular Weight : 166.13 g/mol
Appearance : White crystalline powder
Purity : ≥ 99.5%
Melting Point : ~345 °C (decomposes)
Solubility : Slightly soluble in water
Key Features
- Enhances corrosion and chemical resistance
- Improves thermal stability and durability
- Provides superior mechanical strength
- Ideal for high-performance polyester systems
Main Applications
Unsaturated Polyester Resins (UPR)
- Gel coats
- Marine components
- Pultrusion & molded composites
PET Resin
- Bottle-grade PET
- Polyester fibers
- Improves clarity and flexibility
Coatings & Alkyd Resins
- Industrial coatings
- Automotive coatings
- Coil & marine coatings
Specialty Applications
- Engineering plastics
- Plasticizers
- Dyes & intermediates
Production Process
Produced via liquid-phase catalytic oxidation of meta-xylene, followed by purification and hydrogenation to remove impurities and achieve high purity.
