| Item | Value |
| Purity | 99.50% min. |
| Acid Maleic Content % | 0.05 max. |
| Molten Colority (Pt-Co) | 25 max. |
| Crystallisation Point (℃) | 52.5 min. |
| Fe Content (ppm) | 3 max. |
| Ash Content % | 0.003 max. |
Maleic Anhydride – MA
CAS Number:
108-31-6
Other Trading Names:
- Furan-2,5-dione
- Cis-Butanedioic Anhydride
- 2,5-Furanedione
- Maleic Acid Anhydride
- Toxilic Anhydride
Types of Packaging
- PP bag with 25 kg weight capacity per bag.
- PP bag with 500 kg weight capacity per bag.
- Kraft bag with 25 kg weight capacity per bag.
- Kraft bag with 500 kg weight capacity per bag.
HS Code:
29171400
High-Purity Maleic Anhydride (MA) – Key Intermediate for Unsaturated Polyester Resins, Fine Chemicals & Copolymers
We are a leading global supplier of Maleic Anhydride (MA), a highly reactive, multifunctional organic compound essential in the production of unsaturated polyester resins (UPR), copolymers, agricultural chemicals, and fine chemical intermediates. Supplied in high-purity briquette or molten form, our MA ensures reliable performance in demanding chemical synthesis and polymer applications.
KEY APPLICATIONS FOR BULK BUYERS:
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Unsaturated Polyester Resins (UPR): Critical raw material for producing fiberglass-reinforced plastics (FRP) used in marine, automotive, construction, and tank/piping applications.
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Copolymers & Additives: Key monomer for maleic anhydride copolymers (e.g., with styrene, ethylene, vinyl acetate) used as scale inhibitors, dispersants, and lubricant additives in fuel, oilfield, and water treatment applications.
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Agricultural Chemicals: Intermediate for manufacturing malathion, captan, and other pesticides/fungicides.
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Fine Chemical Synthesis: Building block for producing malic acid, fumaric acid, succinic acid, tetrahydrofuran (THF), and 1,4-butanediol (BDO).
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Food & Beverage Additives: Used in the production of acidulants and flavor enhancers such as malic acid.
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Paper Sizing: Component in alkaline paper sizing agents to improve water resistance and printability.
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Lube Oil Additives: Used to produce polyisobutylene succinimide (PIBSI) dispersants for engine oils.
WHOLESALE SUPPLIER ADVANTAGES:
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High Purity & Consistent Form: Available as white briquettes/pellets or in molten state (>99.5% purity) with low impurities for reliable reactions.
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Bulk Supply Flexibility: Supplied in 25 kg bags (briquettes), isotanks (molten), and dedicated tanker deliveries to meet industrial-scale demand.
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Competitive Bulk Pricing: Economical pricing for resin manufacturers, chemical processors, agricultural producers, and distributors with volume-based agreements.
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Global Logistics & Handling Expertise: Safe and efficient transport of solid and molten MA, supported by full SDS, COA, and regulatory compliance.
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Technical & Process Support: Assistance with resin formulation, copolymer synthesis, and chemical process optimization.
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Multi-Industry Supply Reliability: Trusted supplier to the composites, plastics, agricultural, oilfield, and fine chemical industries.
PRODUCT SPECIFICATIONS:
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Chemical Name: Maleic Anhydride (MA)
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CAS Number: 108-31-6
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Appearance: White crystalline briquettes/pellets or clear molten liquid
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Purity: ≥ 99.5%
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Melting Point: ~52.8°C
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Solidification Point: ≥ 52.0°C
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Maleic Acid Content: ≤ 0.05%
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Storage (Solid): Store in a cool, dry, well-ventilated area away from moisture, bases, and heat sources.











