CAS: 117-81-7

Dioctyl Phthalate (DOP) is a colorless odorless liquid in Phthalate class of chemicals, which is simply known as a plasticizer. As DOP is lower volatility and compatible with wide range of polymers, it is preferred for many applications as compared to any other Phthalates. Its role in the industry relates to the increased flexibility, improvement of both performance and service life of plastic product end use material effect on its ability to process these materials.

Key Properties of Dioctyl Phthalate (DOP)

  • CAS Number: 117-81-7

  • Molecular Formula: C24H38O4

  • Melting Point: -55 °C

  • Boiling Point: 230 °C @ Press: 5 Torr

  • Density: 0.986 g/cm³ at 20 °C

  • Acid Value (mg KOH/g):  Max. 0.05

Physical Properties

  • Color: Colorless (clear)

  • Odor: Odorless

  • Physical state at room temperature: Liquid

  • Texture: Oily and viscous

  • Appearance: Clear liquid with no impurities

  • Compatibility: Highly compatible with various polymers

  • Volatility: Low volatility

  • Solubility: Insoluble in water; soluble in organic solvents

Application of Dioctyl Phthalate (DOP) in the Plastic & Rubber Industry

Dioctyl Phthalate is crucial for improving the flexibility, clarity and luster of different types of plastics in the Plastic & Rubber industry. This material is an important commodity for PVC products, and can be found in cables, flooring as well as synthetic leather (among other things) It Improves the physical properties of these materials, making a direct contribution to its performance and to integrity by insisting on a final product that consumers, and also industries just alike could demand continuously

Other Industries of Application for Dioctyl Phthalate (DOP)

Applications in addition to plastic and rubber sector include major applications, which are as follows: 

  • Oil & Gas: as a lubricant in various kinds of oil product formulations 

  • Construction: added to adhesives, sealants and coatings to improve performance. 

  • Personal care: A skin conditioning agent in cosmetic formulations 

  • Food & Nutrition: in the form of a food contact substance in certain packaging material. 

  • Pharma: function as an Excipient in Pharmaceutical formulation.

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