Phthalic Anhydride (PA) 1Kg Sample

Phthalic Anhydride (PA) is a white crystalline solid with a characteristic odor. It is an important industrial chemical mainly used as an intermediate in the production of plasticizers, resins, and dyes.

Key Properties:

Chemical formula: C₆H₄(CO)₂O

Molecular weight: 148.12 g/mol

Melting point: ~131 °C

Soluble in hot water, alcohols, and many organic solvents

Main Applications:

Plasticizers: Essential raw material for phthalate esters such as DOP, DOTP, DBP, widely used in flexible PVC products.

Unsaturated Polyester Resins (UPR): Used in fiberglass, construction materials, marine and automotive parts.

Alkyd Resins: For paints, coatings, and inks.

Other Uses: Intermediate in the manufacture of dyes, pigments, agrochemicals, and specialty chemicals.

Advantages:

Versatile chemical intermediate

Supports production of high-performance resins and coatings

Critical in PVC plasticizer manufacturing