Thermodynamic and Transport Behavior of Binary Liquid Mixtures of 1-Decanol with Hexadecane and Squalane at 298.15, 303.15 and 308.15 K

Abstract

Abstract This paper presents densities, ρ, speeds of sound, u and viscosities, η of pure 1decanol, C10H21OH, hexadecane, C16H34, squalane (2,4,6,10,15,19,23-hexamethyltetraco- sane), C30H62 and their binary liquid mixtures, with 1-decanol, C10H21OH as a common component, over the whole composition range at 298.15, 303.15 and 308.15 K. The excess molar volume, V m E , excess molar isentropic compressibility, K E S , m , deviation of the speed of sound, u D , from their ideal values u id in an ideal mixture, and viscosity deviation, Δη were calculated from experimental data. The apparent molar volumes, Φ v , i and apparent molar isentropic compressibilities, Φ k , i were also calculated. The values of Φ v , i and Φ k , i were used to estimate the partial molar volumes and partial molar isentropic compressibilities at infinite dilution, ߙV¯ Φ,i 0 and ߙK¯ Φ,i 0, respectively. Apart from using density data for calculating V m E , excess molar volumes have also been estimated by using Prigogine-Flory-Patterson (PFP) theory.