In the realm of industrial chemistry, understanding the intrinsic properties of raw materials is paramount for successful formulation and manufacturing. Dioctyl Terephthalate (DOTP) is a chemical compound that has gained significant traction as a high-performance, non-phthalate plasticizer. NINGBO INNO PHARMCHEM CO.,LTD., a leading chemical manufacturer and supplier in China, delves into the chemical properties and tangible benefits of DOTP that make it a preferred choice for industries worldwide.

Chemical Structure and Composition

DOTP, chemically known as Bis(2-ethylhexyl) terephthalate, is the diester of terephthalic acid and 2-ethylhexanol. Its molecular formula is C24H38O4, and its CAS number is 6422-86-2. Unlike ortho-phthalates, DOTP is derived from terephthalic acid, a para-isomer. This structural difference is the root of many of its advantageous properties, especially its improved safety profile.

Key Chemical and Physical Properties

  • Appearance: DOTP is a clear, colorless, viscous liquid. This visual characteristic is important for many applications where product aesthetics matter.
  • Solubility: It is practically insoluble in water but soluble in most organic solvents, which is typical for plasticizers and aids in its incorporation into polymer matrices.
  • High Thermal Stability: DOTP exhibits excellent resistance to heat degradation. This property is crucial for high-temperature processing and for the long-term performance of products exposed to heat.
  • Low Volatility: Compared to some other plasticizers, DOTP has low volatility. This means less plasticizer is lost during processing and throughout the product's lifespan, contributing to sustained flexibility and reduced emissions.
  • Excellent Electrical Properties: DOTP possesses high volume resistivity, making it an ideal plasticizer for electrical insulation in wires and cables, ensuring safety and performance.
  • Low-Temperature Flexibility: It imparts good flexibility to polymers even at low temperatures, preventing embrittlement and cracking.
  • Low Migration Rate: In many applications, DOTP demonstrates a lower migration rate compared to some traditional plasticizers, which enhances product durability and safety, particularly in food contact or medical applications.

The Tangible Benefits of DOTP

These chemical properties translate directly into significant benefits for manufacturers:

  • Enhanced Safety: As a non-phthalate plasticizer, DOTP offers a safer alternative, aligning with global health and environmental regulations and meeting consumer demand for safer products.
  • Improved Product Performance: The combination of thermal stability, low volatility, and flexibility leads to more durable, reliable, and longer-lasting end products.
  • Processing Advantages: Its good processing characteristics allow for efficient incorporation into PVC and other polymers via various methods like extrusion, calendering, and injection molding.
  • Cost-Effectiveness: The longevity and reduced material loss associated with DOTP can lead to overall cost savings in manufacturing and product lifecycle.

Your Trusted Source for DOTP in China

At NINGBO INNO PHARMCHEM CO.,LTD., we are dedicated to supplying high-quality DOTP that meets rigorous specifications. Our commitment to excellence in manufacturing and stringent quality control ensures that you receive a product with consistent chemical properties and superior performance. If you are looking to purchase DOTP and benefit from its exceptional characteristics, we are your reliable partner in China. Contact us today for a quote and to learn more about our DOTP products.