English
Chinese name: 2-pyrrolidone
Molecular formula and molecular weight: C4H7NO=85.11
【 Physical and Chemical Properties 】: Colorless crystal, melting point 24.6 ℃, boiling point 245 ℃, density 1.116 (25/4 ℃), refractive index 1.4870. Viscosity 13.3. Saturated vapor pressure 1.33 kPa/122 ℃. Flash point 129 ℃. The ignition temperature is 145 ℃. The combustion heat is 2286.5 kJ/mol. Can dissolve in most organic solvents such as water, alcohol, ether, chloroform, benzene, ethyl acetate, and carbon disulfide, but is insoluble in petroleum ether.
