Phthalic Anhydride (PA/Phthalic Acid Anhydride)

Phthalic Anhydride (PA/Phthalic Acid Anhydride)

Phthalic anhydride is an organic compound, C8H4O3, which is a circular anhydride formed by the dehydration of phthalic acid molecules. Phthalic anhydride is a white solid, it is an important raw material in the chemical industry, especially used in plasticizer manufacture. HS code for PA is 2917350000. As one of the best phthalic anhydride suppliers and phthalic anhydride manufacturers in China, Douwin has many high-quality products. If you are looking for reliable phthalic anhydride suppliers and manufacturers, and interested in phthalic anhydride, please contact us. Douwin is your trustworthy phthalic anhydride manufacturer and supplier.

Phthalic Anhydride is made from phthalates or naphthalene. The most common method involves the catalytic oxidation of o-xylene with air over a vanadium pentoxide catalyst at high temperatures. This process yields phthalic anhydride as a major product. Another method involves the catalytic oxidation of naphthalene with air over a metal oxide catalyst. Both processes are industrially significant for the production of phthalic anhydride, which is a key intermediate chemical in the production of various plastics, resins, and other industrial products. Douwin, as one of the most professional phthalic anhydride manufacturers and suppliers in China, produces and supplies high-quality Phthalic Anhydride.