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Phthalic Anhydride
CAS NUMBER - 85-44-9
Basic Information
Product Specification
About Product
Phthalic Anhydride is a versatile chemical intermediate primarily used in the production of plasticizers, unsaturated polyester resins, and alkyd resins. It is a white, crystalline compound with a pungent odor, known for its role in enhancing the flexibility and durability of plastics and coatings.

Product Specification

SYNONYMS

1,3-Isobenzofurandione 1,2-Benzenedicarboxylic anhydride PA Phthalandione

MOLECULAR WEIGHT

148.12 g/mol

CAS NUMBER

85-44-9

CHEMICAL FORMULA

C8H4O3

HS CODE

29173500

DENSITY

1.53 g/cm³

MELTING POINT

131 °C

BOILING POINT

284 °C

VISCOSITY

Not applicable

SHELF LIFE

-

TYPICAL PROPERTIES

White crystalline solid, pungent odor

APPEARANCE

White crystalline solid

Packaging Type

bag

C8H4O3

bags

Chemical Name

Phthalic Anhydride

Industry

Chemical Intermediates

Application of Phthalic Anhydride

  1. Plasticizer Production: Phthalic Anhydride is a key raw material in the manufacture of phthalate plasticizers, which are used to enhance the flexibility and durability of PVC products. Its chemical structure allows it to effectively interact with polymer chains, improving the material's performance.
  2. Unsaturated Polyester Resins: It is used in the production of unsaturated polyester resins, which are essential in the automotive and construction industries for making fiberglass-reinforced plastics. These resins provide excellent mechanical properties and chemical resistance.
  3. Alkyd Resins: Phthalic Anhydride is crucial in the synthesis of alkyd resins, used in paints and coatings. These resins offer superior adhesion, gloss, and durability, making them ideal for protective and decorative applications.
  4. Coatings and Sealants: In the C.A.S.E. industry, Phthalic Anhydride is used to produce coatings and sealants that provide excellent weather resistance and longevity, ensuring the protection of surfaces in various environmental conditions.
  5. Polyester Polyols: It is also used in the production of polyester polyols, which are components of polyurethane foams. These foams are used in insulation, cushioning, and packaging applications due to their lightweight and insulating properties.

About Product

Phthalic Anhydride manufacturers and suppliers play a crucial role in the chemical industry, providing a key intermediate for the production of plasticizers, resins, and coatings. This compound is essential for enhancing the performance of various materials, making it a staple in industries such as automotive, construction, and consumer goods. Phthalic Anhydride suppliers focus on delivering high-purity products to meet the stringent quality standards required by these industries. The production process is carefully controlled to ensure consistency and reliability, which are vital for the compound's effectiveness in its applications. As the demand for sustainable and high-performance materials grows, Phthalic Anhydride manufacturers are increasingly adopting eco-friendly practices to minimize their environmental impact. These efforts include optimizing energy use and reducing emissions during production. The trend towards sustainable manufacturing aligns with the global push for greener chemical processes and products. In addition to its role in plasticizers and resins, Phthalic Anhydride is also used in the production of dyes, pigments, and pharmaceuticals, further highlighting its versatility. Its widespread use across multiple sectors underscores the importance of Phthalic Anhydride as a fundamental compound in modern industry.

Features of Phthalic Anhydride

  • Versatile Chemical Intermediate: Essential for producing plasticizers, resins, and coatings.
  • High Purity Standards: Ensures performance in critical applications like automotive and construction.
  • Eco-Friendly Production: Focus on minimizing environmental impact through sustainable practices.
  • Enhances Material Performance: Improves flexibility, durability, and resistance in end products.
  • Wide Industrial Use: Key component in dyes, pigments, and pharmaceuticals.

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