Pyromellitic Dianhydride Crude

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Pyromellitic Dianhydride Crude
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Crude pyromellitic dianhydride is produced by gas-phase catalytic oxidation of durum.
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Pyromellitic Dianhydride
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Description

JAMMARK INTERNATIONAL TRADINGE(ZIBO) CO., LTD. is one of the most professional manufacturers and suppliers of pyromellitic dianhydride crude in China. If you're going to buy high quality pyromellitic dianhydride crude made in China, welcome to get more information from our factory. For price consultation, contact us.

 

Pyromellitic Dianhydride Crude (PMDA Crude)

Pyromellitic Dianhydride Crude, commonly referred to as PMDA Crude, is an important intermediate used in the production

of purified PMDA and a variety of high-performance polymer and chemical materials.

Product Technical Indicator

Pyromellitic dianhydride crude Item

Standard

Appearance

Off-White or light yellow crystal

Assay

≥98%

Melting Point

283~286℃

Neutralization equivalent

54.5±0.2

PMDA Application

Applications of Pyromellitic Dianhydride Crude

 

Crude PMDA is mainly used as a raw material for:

  • Production of high-purity PMDA via recrystallization or thermal purification
  • Polyimide and polyamic acid synthesis (customers refine before use)
  • Engineering plastics and heat-resistant polymer materials
  • Specialty chemicals and aromatic intermediates
  • Coatings, adhesives, and insulation materials

Manufacturers who require consistent supply for bulk production often choose crude PMDA as a cost-effective starting material.

 

Why Choose Us as Your PMDA Crude Supplier?
  • Professional PMDA manufacturer in China with stable upstream raw materials
  • Consistent batch-to-batch performance
  • Support for REACH-related documents, COA, and technical specifications
  • Competitive pricing for large-volume contracts
  • Fast shipment and export-compliant packaging

 

why choose us

FAQ for Buyers

Q1: What is the main difference between PMDA Crude and purified PMDA?
Purified PMDA has ≥99–99.5% purity, while crude PMDA contains controlled impurities and is intended for customers who perform

their own purification.

Q2: Can crude PMDA be used directly for polyimide production?
Not recommended. Most manufacturers refine crude PMDA first to achieve the required purity for polymer-grade applications.

 

For more information about pyromellitic dianhydride, please click the button below to contact us.

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