Welcome: Sinotrust International Trade Co. Ltd
Language: Chinese ∷  English

Fine chemicals & Intermediates

  • Phthalic Anhydride
  • Phthalic Anhydride
  • Phthalic Anhydride
  • Phthalic Anhydride
Phthalic AnhydridePhthalic AnhydridePhthalic AnhydridePhthalic Anhydride

Phthalic Anhydride

  • CAS NO: 85-44-9
  • Purity:99.5%
  • Appearance: White powder
  • Package:25kg bag, 1mt bag
  • Product description: It is an anhydride formed by dehydration in phthalic acid molecules.Phthalic anhydride is a white solid, which is an important raw material in chemical industry, especially in the manufacture of plast

Phthalic Anhydride  CAS NO: 85-44-9

Product Name: Phthalic Anhydride

Other Name: 1,2-Benzenedicarbonic Acid

CAS NO: 85-44-9 


PA is used 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. 





White scaly or crystalline powder

Melting chromaticity (Pt-Co)


Thermal stability chromaticity (Pt-Co)


Sulfuric acid chromaticity (Pt-Co)


Total Acid  %


Crystallization point ℃


Free Acid  %


Ash Content  %


Package: 25kg bag, 18mt/20GP; 1mt bag;

PREVIOUS:Melamine NEXT:Quinizarine for Dye