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Product Line: Catalysts & Auxiliaries

Dioctyl phthalate

CAS 117-81-7

Molecular structure of Dioctyl phthalate

CAS · 117-81-7

01

Product Overview

Dioctyl phthalate 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

Grade GB/T11406-2001 standard
Appearance Transparency oily liquid, no visible impurity
Chroma (Platinum - cobalt) 30 max
Total Ester 99.5% min
Acid (In terms of phthalic acid) 0.010% max
Moisture 0.1% max
Flash Point 196°C min
Density (20°C) 0.982-0.988 g/cm³
03

Applications

Dioctyl phthalate (DOP) is a widely used plasticizer in the polymer and materials industries. It is primarily added to polyvinyl chloride (PVC) and other plastics to enhance flexibility, durability, and workability. DOP is commonly applied in manufacturing flooring, cables, wires, synthetic leather, coatings, and films. Additionally, it is used in adhesives, sealants, and rubber products to improve elasticity and processability. In research and industrial formulations, DOP serves as a standard reference for testing plasticizer performance and compatibility with polymers.

04

Benefits

The benefits of dioctyl phthalate include its excellent compatibility with a wide range of polymers and its ability to impart flexibility, softness, and impact resistance. It enhances the mechanical properties of plastic materials, making them more durable and easier to process. DOP also improves thermal stability and reduces brittleness, extending the service life of plastic products. Its low volatility and chemical stability contribute to consistent performance in long-term applications, while its cost-effectiveness and availability make it a practical choice for large-scale industrial use.

05

Conclusion

Dioctyl phthalate is a key plasticizer with broad applications in PVC, adhesives, coatings, and rubber products. Its ability to improve flexibility, durability, and processing efficiency makes it indispensable in polymer and materials industries. By enhancing mechanical and thermal properties of plastics, DOP continues to play a vital role in industrial manufacturing and material performance.

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