Phthalic anhydride

Phthalic anhydride

Products Description

PHTHALIC ANHYDRIDE (ORTHO-XYLENE)

PHTHALIC ANHYDRIDE (NAPHTHALENE)

Molecular Formula: C₈H₄O₃(Chemical formula)

Cas No: 85-44-9

H.S.Code: 29173500

Molar mass: 148.12

Solubility: Not soluble in water

Phthalic anhydride hazards: LD50=800～1600mg/kg

Phthalic anhydride structure

       SDS (MSDS) are avaiable against requested. Phthalic anhydride is widely used in india, Pakistan and Turkey, and mainly produced in China and Korea. Phthalic anhydride process includes ortho-xylene process and naphthalene process.

　　Phthalic Anhydride (ortho-xylene) is produced by catalytic oxidation of ortho-xylene. As the anhydride of phthalic acid, phthalic anhydride is white crystalline compound. Because of it’s bifunctional and readily available, PA is an important industrial raw material, especially for the large–scale production of plasticizers for plastics.

　　Phthalic Anhydride (naphthalene) is produced by catalytic oxidation of naphthalene. As the anhydride of phthalic acid, phthalic anhydride is a toxic, white crystalline compound. Because of it’s bifunctional and readily available, PA is an important industrial chemical, especially for the large–scale production of plasticizers for plastics. 

Applications

 Phthalic Anhydride Applications

Ortho-xylene process Phthalic Anhydride is the key process for Phthalic Anhydride production.

Bisically, Ortho-xylene process Phthalic Anhydride quality is better than naphthlene process.

Phthalic Anhydride (ortho-xylene) uses are：

1. For phthalate esters plasticizers(mainly DOP);

2. For unsaturated polyester resins (UPR);

3. Used in pharmaceuticals;

4. As recursor to dyestuffs;

5. For PA-based alkyd resins.

Phthalic Anhydride (naphthalene) in mainly produced in China.

Even currently the quality of naphthalene process Phthalic Anhydride is not as good as OX based Phthalic Anhydride, but naphthalene process Phthalic Anhydride is economical for applition for some industries.

Key application as follows:

1. Used for phthalate esters plasticizers(mainly DOP);

2. Used as recursor to dyestuffs;

3. Used in pharmaceuticals;

4. Used for unsaturated polyester resins (UPR)

5. Used for PA-based alkyd resins 

Packing

Phthalic Anhydride have different package solution.

In 25kg/bag, or in 500kg/bag;

Other packages also avaiable against requirement.

Should be Store below +30°C.