Product Overview

Maleic Anhydride (MAN) is the acid anhydride of maleic acid, existing as a colorless or white solid with an acrid odor. It is a versatile compound with applications in various chemical industries. Maleic anhydride appears as colorless needles, white lumps, or pellets with an irritating and choking odor. It dissolves in water to produce maleic acid and is also soluble in ethanol, forming esters. It is found in the form of white, hygroscopic crystals, usually shipped as briquettes. The melting point is at 113°F. Maleic anhydride has an odor threshold concentration of 0.32 ppm.

Characteristic Data


Melting Point52.8 °C
Molar Mass98.06 g/mol
Density1.48 g/cm³
Boiling Point202 °C
ClassificationOrganic Compound
Vapor density3.4 (vs air)
Vapor pressure0.16 mm Hg ( 20 °C)
Flash point218 °F
Storage tempStore below +30°C
SolubilityChloroform (Slightly), Ethyl Acetate (Slightly)
OdorMild acrid odor.
Water Solubility79 g/100 mL (25 ºC)
SensitiveMoisture Sensitive


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Maleic anhydride is an organic compound with the chemical formula C₂H₂(CO)₂O. It is classified as the acid anhydride of maleic acid, featuring two carbonyl groups.

Maleic anhydride appears as a colorless or white solid and is characterized by an acrid odor. Its physical properties contribute to its use in various industrial applications.

Maleic anhydride is produced industrially on a large scale and finds applications in coatings and polymers. The production process typically involves the catalytic oxidation of benzene or butane.

Maleic anhydride is a key component in the production of various coatings and polymers. It is incorporated into resins, adhesives, and other materials, contributing to their durability and performance.

Maleic anhydride reactivity and ability to undergo polymerization make it valuable in the production of polymers. Its anhydride functional group also allows for versatile chemical modifications in various chemical processes.

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