Product Name
Purified Terephthalic Acid
Chemical Name
1,4-Benzenedicarboxylic Acid
CAS Number
100-21-0
Molecular Formula & Weight
C8H6O4 — 166.13 g/mol
Synonyms
PTA, Terephthalic acid, Benzene-1,4-dicarboxylic acid
About Purified Terephthalic Acid
Purified Terephthalic Acid (PTA) is a white crystalline powder with high purity, produced by oxidizing p-xylene. It is a key raw material in the polyester value chain. PTA is known for its thermal stability, chemical resistance, and polymer-forming ability, making it an essential intermediate for various high-performance polymers and fibers.
Applications / Uses
PTA is widely used in the production of polyesters and performance materials:
- Polyester Resins: The primary raw material in PET resins used for bottles, containers, and films.
- Textile Fibers: Used to produce polyester (PET) fibers for clothing, home textiles, and industrial fabrics.
- Coatings: Applied in powder coatings and polyester resins for enhanced durability and chemical resistance.
- Packaging: Forms lightweight, strong, and recyclable plastics for food and beverage packaging.
- Automotive: Used in fiber-reinforced composites and under-the-hood components.
- Construction: Present in insulation, panels, and pipes where strong, weather-resistant materials are required.
Storage & Handling
- Store in a dry, cool, and well-ventilated area in tightly sealed containers.
- Avoid moisture and incompatible substances such as strong oxidizers.
- Use dust control methods during handling; PTA can cause respiratory irritation if inhaled.
- Wear appropriate PPE including gloves, goggles, and dust masks when handling large quantities.
