Isothermal (vapour plus liquid) equilibrium at several temperatures of (1-chlorobutane+1-butanol, or 2-methyl-2-propanol)

Vapour pressures of (1-chlorobutane + 1-butanol, or 2-methyl-2-propanol) at several temperatures between T = 278.15 and T = 323.15 K were measured by a static method. Reduction of the vapour pressures to obtain activity coeff icients and excess molar Gibbs energies was carried out by fitting the vapo ur pressure data to the Redlich-Kister equation according to Barker's metho d. For (1-chlorobutane + 2-methyl-2-propanol) azeotropic mixtures with a mi nimum boiling temperature were observed over the whole temperature range. ( C) 2001 Academic Press.