Maleic anhydrate (CAS 108-31-6)

Maleic anhydrate (CAS 108-31-6)

Maleic anhydride is an organic compound with the formula C2H2(CO)2O. It is the acid anhydride of maleic acid. It is a colorless or white solid with an acrid odor. It is produced industrially on a large scale for applications in coatings and polymers.

Maleic anhydride is produced by vapor-phase oxidation of n-butane. The overall process converts the methyl groups to carboxylate and dehydrogenates the backbone. The selectivity of the process reflects the robustness of maleic anhydride, with its conjugated double-bond system. Traditionally maleic anhydride was produced by the oxidation of benzene or other aromatic compounds. As of 2006, only a few smaller plants continue to use benzene.

View More


Product Description


Industries: Paints and varnishes, Adhesives, oils, greases, Building chemistry, Resins, plastics, polyurethanes
CAS number: 108-31-6
WE number: 203-571-6
Index number: 607-096-00-9
Chemical formula: C4H2O3
Molar mass: 98,06 g/mol
ADR: UN2215

Other physical properties

pH: Około 1 (50g/l H2O)
Melting / freezing point: 52°C
Boiling point / range: 202°C (1013 hPa)
Relative density: 1,31 g/cm3 (15°C)
Solubility in water: 550 g/100 g (20°C)

Dimensions N/A
Pieejamais apjoms

25 kg bag