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Maleic Anhydride

CAS : 108-31-6

Maleic Anhydride


Maleic anhydride is an organic compound with the formula C4H2O3. Maleic anhydride is a cyclic carboxylic anhydride. It is a colorless or white solid with an acrid odor. Maleic anhydride is produced by oxidation of benzene or a C4 hydrocarbon such as butane in the presence of a vanadium oxide catalyst.

Maleic Anhydride


 Appearance White Briquettes
 Purity 99.96 wt.%
 Molten Color 10 APHA
 Molten Color After Heating 14 APHA
 Solidification Point 52.6 °C
 Ash Content 4.99 ppm
 Iron Content 0.47 ppm



·    Maleic anhydride is a highly reactive chemical intermediate with present and potential uses in practically every field of industrial chemistry.

·    Maleic anhydride is essential to the production of a multitude of resins and plastics, agricultural and industrial chemicals, petroleum additives, paper sizing, water treatment chemicals, epoxy curing agents, artificial sweeteners, flavor enhancers, hair sprays, pharmaceuticals and copolymers.

·    Its biggest single use is in the manufacture of unsaturated polyester resins.

·    Another market for maleic anhydride is lubricating oil additives, which are used in gasoline and diesel engine crankcase oils as dispersants and corrosion inhibitors.



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