Maleic Anhydride
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Product Name: Maleic Anhydride (MA)
CAS No: 108-31-6
Chemical Formula: C₄H₂O₃
Molecular Weight: 98.06 g/mol
Product Overview
Maleic Anhydride is a high-purity organic compound widely used as a key intermediate in chemical synthesis. It appears as white crystalline briquettes or colorless needle-like structures and serves as a versatile building block in the production of resins, agrochemicals, lubricants, and polymers. Its reactivity and functional properties make it essential across industrial and pharmaceutical applications.

Key Features
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High purity (≥99.5%)
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Excellent reactivity as a dienophile and acid anhydride
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Suitable for a wide range of industrial syntheses
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Available in briquette or molten form
Applications
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Resins & Polymers: Production of unsaturated polyester resins (UPR) and alkyd resins for automotive, marine, and corrosion-resistant materials.
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Agrochemicals: Intermediate for insecticides (e.g., malathion), fungicides, and herbicides.
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Specialty Chemicals: Used in synthesizing plasticizers, lubricant additives, paper sizing agents, and food additives.
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Pharmaceuticals: Key precursor for drugs and fine chemicals such as fumaric and succinic acids.
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Other Uses: Organic synthesis, copolymer production (e.g., with styrene), and metal ore processing.
Specifications
| Property | Unit | Guaranteed Value |
|---|---|---|
| Appearance | — | White briquettes |
| Purity (MA) | wt% | 99.5 min |
| Molten Color (APHA) | — | 25 max |
| Solidifying Point | °C | 52.5 min |
| Ash Content | wt% | 0.005 max |
| Iron Content | ppm | 3 max |
Packaging & Storage
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Packaging: 25 kg/bag
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Loadability: 25 tons/FCL without pallets; 20 tons/FCL with pallets
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Storage: Store in a cool, dry place away from light and heat sources.
Synonyms
Maleic Anhydride; MA; 2,5-Dioxofuran; Algenic anhydride; BM-10; Tetrahydrofuran-2,5-dione
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