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Product Line: Catalysts & Auxiliaries

Dioctyl terephthalate

CAS 6422-86-2

Molecular structure of Dioctyl terephthalate

CAS · 6422-86-2

01

Product Overview

Dioctyl terephthalate is a high-purity catalysts-auxiliary-agent supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

02

Product Specifications

Ester content: 99% min
Color (Pt-Co): 30 max
Density (20°C): 0.981 to 0.985 g/cm³
Acid value: 0.03 mg KOH/g max
Volume Resistivity (x10¹⁰ Ω·M): 2 min
Flash Point: 210°C min
Moisture: 0.03% max
03

Applications

Dioctyl terephthalate is primarily used in polymer and plastic industries as a high-performance plasticizer. It is incorporated into polyvinyl chloride (PVC), thermoplastic elastomers, and other polymers to enhance flexibility, softness, and toughness, while maintaining dimensional stability. In coatings and adhesives, it improves film formation, adhesion, and flexibility of resins. It is also used in wire and cable insulation, flooring, synthetic leather, and flexible packaging materials due to its excellent heat and light stability. Beyond industrial plastics, dioctyl terephthalate is employed in medical and food-contact materials, where its low toxicity and non-migratory characteristics meet regulatory safety standards. Its compatibility with a wide range of polymers makes it valuable for specialty formulations that require long-term performance and resistance to aging.

04

Benefits

The benefits of dioctyl terephthalate include its high thermal and photochemical stability, low volatility, and excellent plasticizing efficiency. It provides polymers with improved flexibility and impact resistance without compromising mechanical strength. Its non-toxic and non-phthalate nature makes it safer for use in sensitive applications, including medical devices, food packaging, and children's products. The compound also exhibits low migration and leaching, ensuring long-term performance and reduced environmental release. Its chemical stability and compatibility with diverse polymer systems enhance processing efficiency and product durability. Furthermore, it maintains flexibility at low temperatures, which is important for outdoor and cold-weather applications.

05

Conclusion

In summary, dioctyl terephthalate is a versatile, high-performance plasticizer used in PVC, elastomers, coatings, adhesives, and medical or food-contact materials. Its combination of thermal stability, flexibility enhancement, low toxicity, and low migration makes it a preferred choice for environmentally safer and durable polymer formulations. With these properties, dioctyl terephthalate supports high-quality, long-lasting, and safe plastic and polymer products across a wide range of industries.

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