CLOSE

+86-051233008690

INQUIRY
Phthalic Anhydride (PA/Phthalic Acid Anhydride)
phthalic anhydride pa 1
phthalic anhydride pa
phthalic anhydride pa2

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 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 supplier and manufacturer.

Features of Phthalic Anhydride (PA)

  1. Hypotoxic

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

  3. The eighth category of dangerous goods


Phthalic Anhydride Properties


Phthalic Anhydride  Cas Number (Cas No.)85-44-9
Phthalic Anhydride UN Number2214
Phthalic Anhydride Molecular FormulaC8H4O3
Phthalic Anhydride Formula Structurephthalic-anhydride-formula-structure.jpgphthalic-anhydride-formula-structure.jpg
Phthalic Anhydride Molecular Weight148.11
Phthalic Anhydride IUPAC Name2-benzofuran-1,3-dione
Phthalic Anhydride SynonymsPhthalic Acid Anhydride
Phthalic Anhydride Density At1.53 g/cm³
Phthalic Anhydride Boiling Point284℃
Phthalic Anhydride Melting Point130.8℃



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.


Products
Solvents
Others

Phthalic Anhydride Applications




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.

Q. What is phthalic anhydride used for?
A.

It is widely used in the production of plasticizers and pigments. It can also be used as a scorch retarder, light stabilizer, and heat stabilizer. Mainly used in the production of plasticizer, unsaturated polyester resin, alkyd resin, saturated polyester polyol, also used in the production of anthraquinone and its derivatives (dyes), isocyanic anhydride and phthalocyanine dyes (paints, ink pigments), halogenated acid anhydride (reactive flame retardants and flame retardants intermediates), polyether imide resin, medicine, pesticides, saccharin, and other products. In the polyurethane industry, it is mainly used for the synthesis of aromatic polyester polyols, which can be used for rigid polyurethane foam, and can also be used for polyurethane adhesives, coatings, etc. In addition, phthalate plasticizers are also used in small amounts in polyurethane products. As an experienced phthalic anhydride manufacturer, Douwin provides high-quality phthalic anhydride products to our customers for their unique application requirements. If you are looking for reliable phthalic anhydride manufacturers, don't hesitate to contact us directly to get the latest phthalic anhydride price.


Q. Is phthalic anhydride dangerous?
A.

If exposed to phthalic anhydride, it may cause acute irritation to personnel, including irritation to eyes, respiratory tract and skin, but no permanent damage has been observed.

Q. Which process reaction does formation of phthalic anhydride take place by?
A.

There are three ways of the phthalic anhydride production process: Ortho-xylene process, naphthaline process and mixing process.


Contact Us for More Information about Douwin Chemicals

Get in Touch

Email us with any questions or inquiries or use our contact data. We would be happy to answer your questions.

*
*
*
Related Organic Chemcial Compounds
Dioctyl Terephthalate (DOTP)

Dioctyl Terephthalate (DOTP)

Ethyl Acetate (EAC)

Ethyl Acetate (EAC)

Tetrahydrofuran (THF)

Tetrahydrofuran (THF)

Know More About Douwin Chemical
UPR Unveiled: Exploring Maleic Anhydride Density (g/mL) in Unsaturated Polyester Resins

Feb 02 2024

UPR Unveiled: Exploring Maleic Anhydride Density (g/mL) in Unsaturated Polyester Resins

MEK Solvent: A Key Player in Automotive Surface Finishing

Dec 01 2023

MEK Solvent: A Key Player in Automotive Surface Finishing

Detailed Introduction of the Methyl Ethyl Ketone

Feb 15 2021

Detailed Introduction of the Methyl Ethyl Ketone