Measurement the Sound Speeds, Densities and Refractive Indices of Biodiesel Components and Their Alcoholic Mixtures with 2Methyl1butanol, 2Butanol and 1,2Butandiol

Sound speeds, densities and refractive indices for two biodiesel components (methyl caprate and ethyl myristate) and their mixtures with 2- methyl -1- butanol, 2-butanol and 1,2butandiol were measured at temperatures ranging from 293.15 K to 338.15 K at 5K intervals and atmospheric pressure for the entire composition range. The experimental densities and sound speeds were employed to calculate excess molar volume, VmE, excess thermal expansion coefficient, αpE, infinite partial molar volumes, Vi∞, and excess partial molar volumes at infinite dilution ViE,∞. The magnitude and sign of these quantities have been employed to examine the power of intermolecular forces in mixtures.