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 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.

Features of Phthalic Anhydride (PA)

Hypotoxic

The danger of combustion in case of high heat, open flame, or contact with an oxidizer

The eighth category of dangerous goods

Phthalic Anhydride Properties

Phthalic Anhydride Cas Number (Cas No.) 85-44-9

Phthalic Anhydride UN Number 2214

Phthalic Anhydride Molecular Formula C8H4O3

Phthalic Anhydride Formula Structure

Phthalic Anhydride Molecular Weight 148.11

Phthalic Anhydride IUPAC Name 2-benzofuran-1,3-dione

Phthalic Anhydride Synonyms Phthalic Acid Anhydride

Phthalic Anhydride Density At 1.53 g/cm³

Phthalic Anhydride Boiling Point 284℃

Phthalic Anhydride Melting Point 130.8℃

Storage and Delivery of Phthalic Anhydride / Phthalic Acid Anhydride

As one of the most professional phthalic anhydride suppliers in China, Douwin has great solutions for phthalic anhydride storage and delivery. For the package, PA is available in 25kg/bag, 500kg/bag. Welcome to contact us for more information about phthalic anhydride storage and delivery. Douwin is your reliable phthalic anhydride manufacturer/supplier.

FAQs of Phthalic Anhydride/Phthalic Acid Anhydride

Q.

What is phthalic anhydride made from?

A.

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.