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Phthalic Anhydride Suppliers in India CAS 85-44-9

Chemical FormulaC₈H₄O₃
Molecular Weight148.12 g/mol
Common NamesPAN, Phthalic Acid Anhydride
Physical FormWhite Lustrous Flakes or Clear Molten Liquid
Plasticizer Feedstock Alkyd Resin Base Flakes/Molten

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About Phthalic Anhydride

Sourcing Phthalic Anhydride (PAN)? ChemicalDekho connects you with primary producers like IG Petrochemicals (IGPL) and Thirumalai Chemicals. Access high-purity monomers for DOP and paint resins.

Phthalic Anhydride (CAS 85-44-9) is a fundamental building block for the petrochemical industry. Its largest application is the production of phthalate plasticizers (like DOP, DBP) which make PVC flexible. It is also the essential ingredient for Alkyd Resins used in architectural paints and Unsaturated Polyester Resins (UPR) for fiberglass. Listings feature high-crystallization material in flakes and heated molten bulk tankers.

The platform ensures supply of high-grade PAN with low color and impurity levels, critical for producing clear, high-quality plasticizers and coatings.

Applications & Industries

Plasticizers

DOP, DBP, DIDP manufacturing

Alkyd Resins

Standard base for solvent-based paints

UPR Resins

Fiberglass & composites

Dye Intermediates

Anthraquinone & Phthalocyanines

Agro

Synthesis of fungicides

Pharma

Saccharin production

Flame Retardants

Halogenated intermediates

Common Grades & Specifications

Specifications

  • Assay (Purity) 99.5% Min
  • Crystallizing Pt 130.8°C Min
  • Maleic Acid 0.05% Max
  • Color (Molten) 20 APHA Max

Applications

  • Resin Mfg
  • Small Batch Synthesis
  • Export

Packaging

25kg HDPE Bag500kg Jumbo Bag

Available from Verified Suppliers

Manufacturers

Leading petrochemical producers

Importers

Ready stock at Ports

Logistics

Compliant transport

Explosive License Checked ISO Certified Ex-Tank

Safety & Handling

Warning: Irritant & Sensitizer

Causes serious eye damage and skin irritation. May cause an allergic skin reaction. Harmful if swallowed. Molten product causes severe thermal burns.

Storage & Transport

  • Store below 30°C
  • Protect from moisture (Reacts to form Phthalic Acid)
  • Molten requires specialized heated tanks

First Aid

  • Eyes: Rinse with water for 15+ mins
  • Skin: Wash with soap and water
  • Inhalation: Move to fresh air

Frequently Asked Questions

Molten PAN is supplied hot in heated tankers for immediate use in large plants, saving on re-melting costs. Flakes are solid at room temp, easier for smaller users and long-distance export.

It is a direct indicator of purity. A high crystallization point (130.8°C+) ensures minimal impurities, which is vital for the color and performance of final resins.

Yes, it reacts slowly with moisture in the air to form Phthalic Acid. This can cause 'clumping' in bags and acidity issues in production.

Both are anhydrides used in resins. PAN is larger and provides better durability and gloss in alkyd paints. Maleic is smaller and provides more reactive sites for UPR curing.

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