Phthalic Anhydride


To meet the variegated needs and necessities of our honorable patrons, we are manufacturing and supplying an effective assortment of Phthalic Anhydride. Making use of premium quality ingredients and chemical compounds, our offered products are widely recommended by our customers. In addition to this, we provide them to our customers within the promised time frame at their doorstep. At Chemex, you will find the best quality products at a reasonable price. We are one of the leading Importers & Suppliers of Phthalic Anhydride.

Phthalic anhydride is the organic compound with the formula C6H4(CO)2O. It is the anhydride of phthalic acid. It is a principal commercial form of phthalic acid. It was the first anhydride of a dicarboxylic acid to be used commercially. This Phthalic Anhydride is a colourless solid which is an important industrial chemical, especially for the large-scale production of plasticizers for plastics. In 2000, the worldwide production volume was estimated to be about 3 million tonnes per year.

Applications: The primary use of this product is as a chemical intermediate in the production of plastics from vinyl chloride. Phthalate esters, which function as plasticizers, are derived from Phthalic Anhydride. Phthalate plasticizers are used for the production of flexible PVC products such as cables, pipes and hoses, leather cloth, shoes, film for packaging etc. Phthalic Anhydride has another major use in the production of polyester resins and other minor uses in the production of alkyd resins used in paints and lacquers; certain dyes (anthraquinone, phthalein, rhodamine, phthalocyanine, fluorescin, and xanthene dyes); insect repellents; and polyester polyols for polyurethanes. It is also utilized as a rubber scorch inhibitor and retarder.



  • Compatibility
  • Low volatility
  • Flexibility
  • Excellent electrical characteristics
  • Free from impurities
  • Balanced chemical composition
  • Nominal costs
  • Precisely processed


Specifications :

  • Appearance : White, anhydrous needles
  • Purity : Min 99.80%
  • Relative Density : 1.53
  • Specific Gravity : 1.53
  • Solubility in H2O : Yes
  • Moisture : 0.05 % Max
  • Melting Point : 130.8 oC


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