Phthalic Anhydride (PA) is a vital organic chemical raw material, primarily produced by the oxidation of ortho-xylene or naphthalene. It appears as a white crystalline solid with a slight irritating odor. PA is widely used in the production of plasticizers, unsaturated polyester resins, alkyd resins, dyes, and pigments, making it an essential intermediate in the chemical industry.
Key Features
High Reactivity: PA contains anhydride groups, which readily react with alcohols, amines, and other compounds to form esters or amides.
Good Solubility: Soluble in hot water, alcohols, ethers, and other organic solvents.
Stability: Stable under dry conditions but hydrolyzes slowly to phthalic acid in the presence of water.
Versatility: Used in the synthesis of a wide range of chemical products, making it highly versatile.
Applications
Plasticizers: Used to produce phthalate esters (e.g., DOP, DBP), which are widely used in PVC products to enhance flexibility and processability.
Unsaturated Polyester Resins: Used in the manufacture of fiberglass, coatings, and adhesives, offering excellent mechanical properties and chemical resistance.
Alkyd Resins: Used in paints, coatings, and varnishes, providing good adhesion and gloss.
Dyes and Pigments: Serves as an intermediate in the synthesis of anthraquinone dyes and pigments.
Other Applications: Used in the production of pharmaceutical intermediates, pesticides, and fragrances.
Packaging & Storage
Packaging: Available in 25 kg/bag, 500 kg/bag, or ton bags. Custom packaging options are available upon request.
Storage: Store in a cool, dry, and well-ventilated area. Avoid contact with moisture. Recommended storage temperature: 15-25℃.
Safety & Environmental Considerations
Irritation: PA is irritating to the skin, eyes, and respiratory system. Proper protective equipment (e.g., gloves, goggles, respirators) must be worn during handling.
Flammability: Combustible but not highly flammable. Keep away from open flames and high temperatures.
Environmental Impact: Dispose of waste materials in accordance with local environmental regulations to prevent pollution.
Contact Us
For more information or to request a sample, please contact our sales team. We are committed to providing high-quality products and excellent service!
