Application of ERAS-model and Prigogine–Flory–Patterson theory to excess molar volumes for ternary mixtures of (2-chlorobutane + butylacetate + isobutanol) at T = 298.15 K

Abstract

Densities of the ternary mixture consisting of {2-chlorobutane (1)+butylacetate (2)+isobutanol (3)} and related binary mixtures were measured over the whole range of composition at T=298.15K and ambient pressure. Excess molar volumes VmE for the mixtures were derived and correlated as a function of mole fraction by using the Redlich–Kister and the Cibulka equations for binary and ternary mixtures, respectively. From the experimental data, partial molar volumes, V¯m,i excess partial molar volumes, V¯iE partial molar volumes at infinite dilution V¯m,i0 and apparent molar volumes V¯φ,i were also calculated. For all binary mixtures over the entire range of mole fractions VmE data are positive. The experimental results of the constituted binary mixtures have been used to test the applicability of the extended real associated solution (ERAS-model) and Prigogine–Flory–Paterson (PFP) theory.