Excess properties for acetophenone plus butanols at 298.15 K

Densities, viscosities, and refractive indexes of binary systems acetopheno ne + n-butanol, + sec-butanol, and + 2-methyl-1-propanol have been measured at 298.15 K and atmospheric pressure, over the whole composition range. Th e excess values of molar volume, viscosity, Gibbs free energy of activation of viscous flow, and internal pressure were calculated from experimental m easurements. Based on the variations of the excess functions with compositi on, conclusions about the molecular interactions in these kinds of mixtures were obtained.