Acoustical Properties of the Binary Mixtures of Tetrahydrofuran + 1-Alkanols (C3 − C8) at 303.15 K – Comparison with Theories

This paper is a continuation of our earlier work1-5 .The number of studies on acoustical properties of binary mixtures has increased in recent years due to industrial applications and the theoretical interest in studying the nature of molecular interaction and packing phenomena in ternary mixtures. In this work, we measured densities and speeds of sound of the binary mixtures of THF + 1-propanol, + 1-butanol, + 1-pentanol, + 1-hexanol, 1-heptanol, and + 1-ocatanol at 303.15 and over the whole composition range. The data obtained are used to calculate isentropic compressibility, ks deviation inisentropic compressibilities, Δks and acoustic impedance, Z of the binary mixtures. Theoretical models dealing with liquid state including Jacobson free length theory (FLT)6, Schaaff collision factor theory (CFT)7, have been proposed for the prediction of the speeds of sound of the binary mixtures.