Chemical · Product Detail
Maleic Anhydride
Reactive chemical intermediate for unsaturated polyester resins and specialty synthesis.
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Maleic Anhydride at a Glance
ZXCHEM is a maleic anhydride supplier and exporter in China. Maleic Anhydride (CAS 108-31-6), also called 2,5-furandione, is a white crystalline chemical intermediate.
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Standard lead time is approximately 14 days from order confirmation.
Maleic Anhydride Specifications
Values are supply limits. Molten colour 25 is a typical value.
Commercial Information
Storage & Shipping
Storage Conditions
Keep tightly sealed in a cool, dry, ventilated area. Protect from moisture and water contact. Store away from alcohols, alkali metals, strong oxidizers and strong reducing agents.
Packaging Integrity
Inspect outer bags and moisture-resistant liners before unloading. Keep the liner sealed during storage, retain lot identification and prevent moisture ingress during sampling and dispensing.
Packaging
25 kg PE-lined plastic woven bags
Handling & Protection
Avoid generating or inhaling dust. Use enclosed handling and local extraction, chemical-resistant gloves, eye and face protection and protective clothing. Provide eyewash and emergency washing facilities; manage dust under the workplace exposure-control program.
What Is Maleic Anhydride?
Maleic anhydride (MA), CAS 108-31-6, C4H2O3, molecular weight 98.06 g/mol, is an unsaturated cyclic anhydride. Its anhydride group and double bond make it a key raw material for unsaturated polyester resins and for lubricant additives, polymers and surfactant intermediates.
The supply grade has assay ≥99.0%, solidification point ≥52.4°C, ash ≤0.005% and iron ≤5 ppm. It reacts with water to form maleic acid, so keep it dry.
Maleic anhydride ships as UN 2215, Class 8, packing group III. It is corrosive and can cause respiratory and skin sensitization, so control dust and use suitable protective equipment.
As a maleic anhydride supplier and exporter in China, ZXCHEM packs the white crystalline flakes or needles in 25 kg PE-lined woven bags.
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Maleic Anhydride Applications
Unsaturated polyester resins
Unsaturated acid component reacted with glycols and other acids. Assay, colour and solidification point are matched to the resin.
Lubricant and polymer intermediates
Raw material for succinimide dispersants, copolymers and other additive chemistry. Moisture and reaction conditions are controlled.
Ester and surfactant synthesis
Intermediate for maleate esters, sulfosuccinates and other derivatives. Purity is matched to the final product.
Why Source Maleic Anhydride from ZXCHEM
Combined chemical orders
Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.
Dedicated R&D Laboratory
Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.
Experienced Chemical Logistics
ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.
Dedicated Purchasing Support
Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.
Maleic Anhydride FAQ
Which Maleic Anhydride grade should I choose?
The listed supply specification is Assay ≥99.0%. Check the TDS for assay and impurity limits, then test a sample for compatibility and performance in your process.
Can I request a Maleic Anhydride sample for testing?
Yes. We can provide free samples for testing. Tell us the application, the grade you need and the tests you plan to run.
How is Maleic Anhydride packed and shipped?
Standard packing is 25 kg PE-lined plastic woven bags. The usual MOQ is 1,000 kg, with a lead time of approximately 14 days from order confirmation. The stated bulk transport classification is Class 8 — Corrosive.
Which documents are available for Maleic Anhydride?
The TDS lists the supply specification and the SDS covers safety and transport; both can be downloaded on this page. Each shipment comes with a batch COA.
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