Densities and ultrasonic velocities of binary mixtures of 2,4,6-trimethyl-1,3,5-trioxane + <i style="">n</i>-alcohols at 298.15, 303.15 and 308.15 K

Abstract

The densities and ultrasonic velocities of binary mixtures of 2,4,6-trimethyl-1,3,5-trioxane + ethanol, 1-propanol and 1-butanol at 298.15, 303.15 and 308.15 K were measured over the whole mole fraction range. Experimental data were used to estimate isentropic compressibility (<i style="">k_s</i>), intermolecular free length (<i style="">L</i>_f), specific acoustic impedance (<i style="">Z</i>) and their deviations, such as deviation in isentropic compressibility (<img src='/image/spc_char/delta.gif' border=0><i style="">k</i>_s), excess intermolecular free length (<i style="">L</i>_f^E) and excess acoustic impedance (<i style="">Z</i>^E). The results are fitted to a Redlich-Kister equation. The results are discussed in terms of molecular interactions.