Phthalic anhydride

Application Fields

Plasticizer Production:

Core Application: Accounts for 60% of phthalic anhydride consumption, mainly used to synthesize Dioctyl Phthalate (DOP), Dibutyl Phthalate (DBP), etc., for softening Polyvinyl Chloride (PVC) plastics, widely used in pipes, films, wires, and cables.

Resin Synthesis:

Unsaturated Polyester Resin: Used in fiberglass, coatings, artificial stone, etc.;

Alkyd Resin: Used in paints and inks to improve weather resistance and gloss.

Fine Chemicals:

Pharmaceutical Field: Synthesis of the laxative phenolphthalein and antibiotic intermediates;

Agrochemical Field: Production of the insecticide phosmet and the herbicide bentazone;

Dyes and Pigments: Synthesis of Phthalocyanine Blue and Anthraquinone dyes.

Other Uses:

Raw materials for saccharin sodium and food additives;

Epoxy resin curing agents and rubber scorch retarders.