Also known as anhydride maleic anhydride or water loss apple, often referred to as "maleic anhydride. Colorless crystalline, with a strong pungent odor, freezing point 52.8 ℃, boiling point 202 ℃, is easy to sublimation. Is mainly composed of four fractions of benzene or carbon is made by oxidation of butane and butene, is the production of unsaturated polyester and synthetic organic materials.
Appearance and properties: colorless needle crystal. Melting point (℃) : 52.8 Relative density (water = 1) : 1.48 Boiling point (℃) : 202 Relative vapor density (air = 1) : 3.38 Saturated vapor pressure (kPa) : 0.02/20 ℃ The heat of combustion (kJ/mol) : 1390 Flash point (℃) : 110 (o. chua) Explosion limit % (V/V) : 7.1 Ignition temperature (℃) : 447 Lower explosive limit % (V/V) : 1.4 Solubility: soluble in water, acetone, benzene, chloroform, etc. Most of the organic solvent