Dimethyl phthalate DMP CAS 131-11-3

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Dimethyl phthalate

Dimethyl phthalate (DMP) is a colorless, oily liquid with the chemical formula C10H10O4. It is commonly used in various industries for its versatile properties. Here's an introduction to DMP, its uses, and characteristics:

Product Introduction:

Dimethyl phthalate (DMP) is a chemical compound widely used in industrial applications. It is a clear and odorless liquid with excellent stability and compatibility.

Physical state
Liquid. Oily.
Slight aromatic odor
Melting point/freezing point
5.5 °C. Atm. press.:101.3 kPa.
Boiling point or initial boiling point and boiling range
282 °C. Atm. press.:760 mm Hg.
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.; however, ignition is difficult.
Lower and upper explosion limit/flammability limit
Lower flammable limit: 0.9% by volume at 358 deg F (180 deg C)
Flash point
149 °C. Atm. press.:760 mm Hg.
Auto-ignition temperature
555 °C. Atm. press.:760 mm Hg.
Kinematic viscosity
17.2 cP at 25 deg C
less than 1 mg/mL at 68° F (NTP, 1992)
Partition coefficient n-octanol/water
log Pow = 1.56. Remarks:No data on temp. and pH.
Vapour pressure
< 0.01 mm Hg. Temperature:20 °C.
Density and/or relative density
1.189 g/cm³. Temperature:25 °C.
Relative vapour density
6.69 (NTP, 1992) (Relative to Air)


  1. Plasticizer: DMP is primarily used as a plasticizer in the production of cellulose-based plastics, such as cellulose acetate and cellulose nitrate. It enhances the flexibility, durability, and workability of these materials.
  2. Solvent: DMP serves as a solvent for various resins, dyes, and oils. It is particularly useful in the formulation of printing inks, adhesives, and surface coatings.
  3. Additive: DMP is employed as an additive in the manufacturing of rubber, textiles, and synthetic fibers. It improves the processing properties and performance of these materials.
  4. Pesticide Ingredient: DMP is utilized as an ingredient in some pesticide formulations, contributing to their effectiveness.


  1. High Purity: DMP is available in high-purity grades, ensuring its reliability and consistent performance in various applications.
  2. Low Volatility: It exhibits low volatility, which makes it suitable for applications requiring long-term stability and resistance to evaporation.
  3. Good Compatibility: DMP has excellent compatibility with a wide range of materials, including plastics, resins, and solvents.
  4. Chemical Stability: It demonstrates good chemical stability, allowing it to withstand processing conditions and maintain its properties over time.


For more information about our DMP products and their suitability for your specific needs, please don't hesitate to contact us. We are committed to providing high-quality products, competitive prices, and excellent customer service.

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Dimethyl phthalate DMP CAS 131-11-3