ESTIMATION OF THERMODYNAMIC PROPERTIES OF SOME BINARY LIQUID MIXTURES OF 1, 4-DIOXANE WITH 1-ALKANOLS (C3, C4, C6, C8) AT 303.15 K

Abstract

The analysis of thermodynamic properties of liquids and liquid mixtures play very important role in understanding the nature of molecular interaction occurring in the system. This paper presents experimental data for density (ρ), ultrasonic velocities (u) and refractive indices(n) of pure 1,4-dioxane, 1-propanol, 1-butanol, 1-hexanol, 1- octanol and their binary mixtures with 1,4-dioxane as a common component over the whole composition range at 303.15 K. The molecular refraction (Rm), excess molecular refraction (RE m) and excess molar volume (VE) were calculated from the experimental data. The results are discussed in terms of molecular interactions between the components of the binary mixtures. Excess molar volumes have also been estimated from measurements of refractive indices.