Product Name : Maelic Anhydride
Synonyms : cis-Butenedioic acid anhydride; Toxilic anhydride; MA; 2,5-Dihydro-2,5-dioxofuran; 2,5-Furandione; 2,5-Furanedione; Maleic acid anhydride; Maleic anhydride; Anhydrid kyseliny maleinove; Maleic acid anhydride; Maleinanhydrid; Other RN: 184288-31-1
About the Product : Maelic anhydride, an organic compound, is the acid anhydride of maelic acid. In its pure state maelic anhydride is a colourless solid and has a pungent odour. It is toxic and an irritant to the skin. It is used to manufacture unsaturated polyester resins which are used in the housing, automotive and marine industries. It is also used as chemical intermediate to manufacture a broad range of consumer goods.
Product Identification Features :
CAS Number: 108-31-6
H.S. Code: 2917.14.5000
Chemical formula: C4H2O3
Chemical Properties:
Melting point: -51-53 C
Boling point: 202 C
Specific gravity: 1.48
Solubility in water: Hydrolysis
Vapour density: 3.4
Production Process : Benzene or n-butane is used as a feedstock for the production of maleic anhydride. Benzene or butane is fed into a stream of hot air and the mixture is passed through a catalyst bed at elevated temperature. Vanadium and phosphorus oxides are used as catalysts when butane is used as the feedstock. Vanadium pentoxide and molybdenum trioxide are the catalysts used for the benzene route.
2 CH3CH2CH2CH3 + 7 O2 → 2 C2H2 (CO) 2O + 8 H2O
Uses :
Used to manufacture unsaturated polyester resins.
Used to produce 1,4- butanediol.
Used in food and personal care industry.
Used to manufacture insecticides and fungicides.
Used in pharmaceutical industry.
Used in motor oil additives, artificial sweeteners, flavour enhancers etc.
