Excess Molar Volumes, Viscosities, and Refractive Indexes for Binary Mixtures of 1-Chlorobutane with Four Alcohols at T = (288.15, 298.15, and 308.15) K

Abstract

Densities, viscosities, and refractive indexes were measured for the binary mixtures formed by methanol, ethanol, propan-1-ol, and butan-1-ol with 1-chlorobutane at T = (288.15, 298.15, and 308.15) K and atmospheric pressure over the whole concentration range. Excess molar volumes (VE) were determined from the densities of pure liquids and mixtures measured with a vibrating-tube densimeter. Excess molar volumes, which increase as the temperature increases, are positive except for mixtures in the high mole fraction region of propan-1-ol or butan-1-ol. Viscosities were measured with an automatic Ubbelohde capillary viscometer. Refractive indexes were measured using a digital refractometer. Deviations in viscosity (Δη) and deviations in refractive index (ΔnD) as a function of mole fraction for the mixtures were derived from the experimental data. The computed results of VE, Δη, and ΔnD were fitted to the Redlich−Kister equation. Furthermore, McAllister's three-body interaction model is used to correlate the ...