Maleic Anhydride

Product Overview

Maleic anhydride is an industrial intermediate within our organic chemicals range. It is used to manufacture polyester resins, lubricant additives, copolymers and other chemical derivatives.

Like phthalic anhydride, it is used in resin chemistry, but the two materials have different structures and formulation roles. They should not be treated as direct substitutes without reformulation.

Key Product Information

Physical-property values are for reference. Final quality limits and supplied form should follow the agreed specification and batch COA.

Applications

1. Unsaturated Polyester Resins

• Important raw material for unsaturated polyester resin production.

• Used in resin systems for fiberglass-reinforced products.

• Downstream applications include construction components, automotive parts and marine products.

2. Coatings and Paints

• Used in the synthesis and modification of selected coating resins.

• Contributes reactive functionality to suitable resin systems.

• Finished coating performance depends on the complete formulation and curing conditions.

3. Lubricant Additives

• Intermediate for manufacturing selected lubricating-oil additives.

• Used in chemical routes that produce functional additive components.

• Final lubricant properties depend on the resulting additive chemistry and formulation.

4. Agricultural Chemicals

• Intermediate in selected agrochemical synthesis routes.

• Product suitability depends on the required reaction, specification and impurity limits.

• Industrial maleic anhydride is a chemical raw material, rather than a ready-to-use agricultural product.

5. Chemical Synthesis and Downstream Intermediates

• Used in production routes for fumaric acid, malic acid and other derivatives.

• Serves as a feedstock in processes producing 1,4-butanediol and related chemicals.

• Downstream food or pharmaceutical applications require their own product specifications and quality controls.

6. Plastic Additives and Copolymers

• Used in selected copolymer and polymer-modification processes.

• Serves as an intermediate for esters and other functional additives.

• Maleic-based copolymers also have applications in water-treatment formulations.

Product Advantages

• Reactive functionality for resin and intermediate synthesis.

• Established use across several industrial chemical processes.

• Solid packaging options suitable for industrial purchasing.

• Specification and shipment arrangements matched to order requirements.

Packaging and Storage

Packaging

• Common solid packing: 25 kg bags with a suitable moisture-resistant liner.

• Larger bag options: Confirm availability and net weight when requesting a quotation.

• Molten delivery: Requires dedicated heated transport equipment and separate supply confirmation.

Storage

• Store solid material in a cool, dry, well-ventilated area.

• Keep packaging securely closed and protect it from moisture.

• Keep away from heat, ignition sources and incompatible materials.

• Separate from strong oxidizers, bases and other incompatibles identified in the SDS.

• Follow grade-specific storage conditions and shelf-life information.

• Molten material requires dedicated heated storage and operating procedures.

Safety and Handling

• Avoid breathing dust or vapor.

• Prevent contact with skin and eyes.

• Use suitable ventilation, chemical-resistant gloves and eye protection.

• Account for corrosive and sensitizing hazards.

• Consult the current SDS before handling, storage or transport.

Transportation Information

• UN number: 2215.

• Transport hazard class: 8.

• Packaging, labeling and shipment arrangements should follow the applicable requirements and current SDS.

• Solid and molten shipments require different equipment and handling arrangements.

• Keep shipments separated from incompatible goods.

Frequently Asked Questions

What Is Maleic Anhydride Mainly Used For?

Its principal uses include unsaturated polyester resins, lubricant-additive intermediates, copolymers and other chemical derivatives.

What Happens When Maleic Anhydride Contacts Water?

It hydrolyzes to form maleic acid. Moisture protection is therefore important during storage and handling.

Is Maleic Anhydride the Same as Maleic Acid?

No. They are different compounds with different molecular formulas and specifications. Maleic acid forms when maleic anhydride reacts with water.

Which Quality Parameters Should Buyers Check?

Review assay, color, melting or solidification behavior and relevant impurity limits. Confirm the test methods and batch results against the agreed supply specification.

Can Maleic Anhydride Be Supplied in Molten Form?

Molten delivery is possible in the industry, but requires dedicated heated storage and transport. Confirm availability, receiving facilities and logistics before ordering.

Why Choose Aozun Chemical?

• Industrial chemical sourcing and export support.

• Product-specification matching.

• Packaging and shipment coordination.

• Quotation and document support for bulk orders.

Contact Us

For maleic anhydride pricing and product documents, contact Aozun Chemical with your application, required specification, quantity, preferred form, packaging and destination port.

Email: lisa@aozunchem.com
WeChat / WhatsApp: +86 186 5121 5887