Terephthalic Acid (100-21-0): A Comprehensive Guide to Properties, Applications, and Industrial Significance
Discover the essential role of Terephthalic Acid (PTA) in modern industry, from creating durable textiles and packaging to innovative coatings and specialized applications. Explore its synthesis, properties, and vast market impact.
Get a Quote & SampleProduct Core Value

Terephthalic Acid
As a leading supplier in China, we provide high-quality Terephthalic Acid (CAS 100-21-0), a fundamental chemical intermediate with a pivotal role in numerous industries. Its primary application lies in the production of polyethylene terephthalate (PET), a versatile polymer used extensively in clothing fibers, plastic bottles, and packaging films. We pride ourselves on being a reliable source for this essential chemical building block.
- Unlock superior material performance by utilizing Terephthalic Acid for polyester production, a cornerstone for durable textiles and resilient packaging solutions.
- Understand the chemical properties of Terephthalic Acid (CAS 100-21-0) to optimize its use in diverse industrial processes, ensuring product quality and efficiency.
- Leverage the wide applications of Terephthalic Acid in textiles, where it contributes to the creation of fabrics known for their durability, wrinkle resistance, and ease of care.
- Explore the critical role of Terephthalic Acid in plastic bottle manufacturing, providing lightweight, shatter-resistant, and high-barrier packaging for beverages and other consumer goods.
Advantages Offered by Terephthalic Acid
Versatile Polymer Precursor
Terephthalic acid is indispensable for producing widely used polymers like PET and PBT, offering excellent mechanical and thermal properties for various engineering plastics.
Enhanced Material Properties
The aromatic structure of Terephthalic Acid imparts excellent hardness, corrosion resistance, and stain resistance to coatings and unsaturated polyesters.
Broad Industrial Reach
From high-performance textiles to robust packaging and durable coatings, the applications of Terephthalic Acid span across numerous sectors, highlighting its industrial importance.
Key Applications
Polyester Production
Terephthalic acid is the primary monomer for PET and PBT, crucial for manufacturing fibers, films, and plastics used in everyday products.
Textile Industry
As a key component in polyester fibers, it enables the production of durable, easy-care fabrics for apparel and home furnishings.
Packaging Solutions
It is vital for creating PET bottles and containers, offering excellent barrier properties and shatter resistance for food and beverage packaging.
Coatings and Adhesives
Terephthalic acid is used in formulating resins for coatings and adhesives, providing enhanced weatherability, chemical resistance, and durability.