Maleic Anhydride is a cyclic dicarboxylic anhydride and reactive organic intermediate extensively utilized as the primary feedstock for unsaturated polyester resin production. Widely recognized in the chemical sector as cis-Butenedioic anhydride or MA, this white crystalline solid functions as a multifunctional chemical building block for synthesizing alkyd resins, lubricating oil additives, and agricultural chemicals through copolymerization and esterification. We offer this essential industrial raw material with competitive factory pricing to support diverse manufacturing sectors. Our logistics framework ensures reliable bulk supply availability and customized specifications, fully accompanied by MSDS, TDS, COA documentation for strict safety handling and compliance.
Maleic Anhydride CAS 108-31-6
- CAS: 108-31-6
- Synonyms: cis-Butenedioic anhydride, 2,5-Furandione, Toxilic anhydride, MA, Maleic acid anhydride
- Molecular Formula: C4H2O3
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
Synonyms: Maleic anhydride, 2,5-furandine, butenedioic anhydride
CAS No.: 108-31-6
Molecular formula: C4H2O3
MW: 98.06
Appearance: White flake crystals, powdered, needle-like, flake-like, pill-like, rod-shaped, clumpy or molten substance
Relative density: 1.480
Melting point: 52.8°C
Boiling point: 202.2°C
Flash point (open cup): 110.0°C
At lower temperatures (60-80°C), it is easy to vaporize, soluble in alcohols, and easy to deliquescence in water to form maleic acid
It is mainly used for the production of unsaturated polyester resin, alkyd resin, and pesticide malathion
quality assurance
FAQ - Technical & Supply Chain
-
Q:
Does Maleic Anhydride correspond to the cyclic anhydride structure or the hydrated acid form?
A: Maleic Anhydride is verified under CAS 108-31-6 as the anhydrous cyclic compound (cis-butenedioic anhydride), distinguishing it from Maleic Acid or Fumaric Acid to ensure the water-free reactivity required for precise esterification processes. -
Q:
What is the primary industrial application for Maleic Anhydride?
A: Maleic Anhydride is typically applied as the core reactant in the manufacture of unsaturated polyester resins (UPR), which are subsequently reinforced with fiberglass for use in construction, marine, and automotive composite materials.
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Sample, Bulk Order and Repeat Supply Support
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