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Phthalic Anhydride

Phthalic Anhydride is an important organic chemical intermediate widely used in the manufacture of plasticizers, resins, dyes, and pharmaceuticals. It is produced by the catalytic oxidation of o-xylene or naphthalene, and is a key raw material in the chemical processing industry.
  • White crystalline flakes or powder

  • 85-44-9

  • C₈H₄O₃

  • 148.12

  • 201-607-5

Availability:

Product Description

Technical Specifications


Parameter Specification
Appearance White flaky solid
Purity (GC) ≥ 99.5%
Molten Color (Pt-Co) ≤ 20
Maleic Anhydride Content ≤ 0.05%
Free Acid (as phthalic acid) ≤ 0.2%
Boiling Point 295°C
Density (20°C) 1.53 g/cm³
Solubility Soluble in alcohol, ether, benzene

Complies with GB/T 15336-2021 and other international industrial standards.




Applications of Phthalic Anhydride


1. Plasticizers (DOP, DBP, etc.)

  • Key raw material for manufacturing dioctyl phthalate (DOP) and dibutyl phthalate (DBP), widely used in PVC and flexible plastics.

2. Unsaturated Polyester Resins (UPR)

  • Used in the production of marine coatings, fiberglass-reinforced plastics, and automotive parts.

3. Alkyd Resins & Paints

  • Essential in alkyd resin synthesis, commonly used in oil-based paints, varnishes, and coatings.

4. Dyes & Pigments

  • Intermediate for the synthesis of anthraquinone, phthalein dyes, and pigment lakes.

5. Pharmaceuticals & Agrochemicals

  • Used in the manufacture of intermediates for vitamins, antiseptics, insect repellents, and more.




Packaging & Logistics


Packaging Type Description
Bag Packaging 25kg polypropylene woven bags with PE liner
Jumbo Bags 500kg / 1000kg FIBC bulk bags
Custom Packaging Available on request

  • Container Load: 20FCL = ~20MT

  • Storage: Store in a cool, dry, well-ventilated area. Keep away from moisture and direct sunlight.

  • Shelf Life: 12 months in sealed packaging under proper conditions.




Safety & Handling


  • UN Number: UN2214

  • Hazard Class: Class 8 – Corrosive Substances

  • HS Code: 2917350000

  • Personal Protection: Use gloves, eye protection, and face shield

  • First Aid: In case of contact with skin or eyes, rinse immediately with plenty of water. Seek medical advice.


MSDS / COA / TDS available upon request.




Why Choose Us as Your Phthalic Anhydride Supplier?


  • Reliable manufacturer and exporter of industrial chemicals

  • High-purity product with strict QC and third-party testing (SGS/BV)

  • Compliant with global export regulations

  • Flexible packaging and OEM labeling available

  • Prompt delivery with full documentation support




Request a Quote Today


Looking for a trusted supplier of Phthalic Anhydride with competitive pricing and global shipping?


Email: arvin@aozunchem.com


WhatsApp / WeChat: +86-13915004413


Shipping: FOB / CIF / DDP worldwide


Contact us now for latest price, free samples, or technical documents!


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