For procurement managers and R&D scientists in the chemical industry, a deep understanding of core materials is essential. Dioctyl Phthalate (DOP), a widely used plasticizer, is one such material. This article delves into the properties, specifications, and industrial applications of DOP, highlighting its significance as a versatile chemical auxiliary agent.

Dioctyl Phthalate, with the CAS number 117-84-0, is primarily known for its role as a high-efficiency plasticizer. It is a colorless, transparent oily liquid with a mild odor, insoluble in water but soluble in most organic solvents. Its chemical formula is C24H38O4, and its molecular weight is approximately 390.56 g/mol. These characteristics contribute to its ease of use and integration into various polymer matrices.

Key technical specifications for DOP typically include:

  • Purity: Generally above 99.5%, ensuring consistent performance.
  • Appearance: Colorless transparent liquid, free from suspended matter.
  • Color (Pt-Co): Typically a low value, such as ≤ 30, indicating minimal coloration.
  • Acidity (mg KOH/g): A low value, usually ≤ 0.1, which is crucial for maintaining polymer stability.
  • Flash Point: Generally above 200°C, indicating good thermal stability and reduced fire hazard during handling.
  • Moisture Content: Usually ≤ 0.1%, to prevent negative impacts on processing and product quality.

As a manufacturer, we ensure our DOP meets these rigorous standards. Buyers can rely on these specifications when comparing DOP suppliers and assessing product quality.

The industrial applications of DOP are vast and varied. Its primary use is as a plasticizer for PVC resins, significantly enhancing flexibility, durability, and processing ease. This makes it invaluable in the production of:

  • Flexible PVC Products: Films, sheets, artificial leather, hoses, footwear, and flooring.
  • Wire and Cable Jacketing: Where its electrical insulation properties are paramount.
  • Paints and Coatings: As a film-forming agent to improve flexibility and adhesion.
  • Rubber Compounds: To enhance processing fluidity and low-temperature flexibility.
  • Other Polymers: Including ABS resins and cellulose derivatives.

The economic advantage of DOP is another significant factor driving its widespread adoption. It offers a high level of performance at a competitive price, making it an attractive option for large-scale manufacturing. When you purchase DOP, especially in bulk from a trusted supplier in China, you can expect a balance of quality and affordability.

Understanding these properties and specifications is critical for anyone looking to effectively utilize DOP in their manufacturing processes. Whether you are a procurement specialist seeking the best value or an R&D scientist optimizing formulations, a clear grasp of DOP's capabilities ensures optimal material performance.