title: Ultrasonic Studies on Molecular Interactions in Binary Mixtures ofN-Methyl Aniline with Methyl Isobutylketone, +3-Pentanone, and +Cycloalkanones at 303.15 K.
abstract: Densities,ρ, viscosities,η, and ultrasonic sound velocitiesuof pure methyl isobutylketone, diethylketone, cyclopentanone, cyclohexanone, 2-methyl cyclohexanone and those of their binary mixtures withN-methyl aniline were measured at 303.15 K over the entire composition range. These experimental data have been used to calculate the excess volume (VE), deviation in ultrasonic sound velocity (∆u), isentropic compressibility (κs), intermolecular free length (Lf), excess intermolecular free length ([Formula: see text]), acoustic impedance (Z), excess isentropic compressibility ([Formula: see text]), deviation in viscosity (∆η) and excess Gibbs energy of activation of viscous flow (G*E). The viscosity data have been correlated using three equations proposed by Grunberg and Nissan, Katti and Chaudhri, and Hind et al. The excess/deviations have been fitted by Redlich-Kister equation and the results are discussed in terms of molecular interactions present in these mixtures.
authors.affiliation: Department of Chemistry, J.K.C. College, Guntur, 522006 India.
authors.forename: M
authors.initials: M
authors.lastname: Gowrisankar
authors.forename: P
authors.initials: P
authors.lastname: Venkateswarlu
authors.forename: K
authors.initials: K
authors.lastname: Sivakumar
authors.forename: S
authors.initials: S
authors.lastname: Sivarambabu
keywords: Excess volume; Intermolecular interaction; Ketone; N-methyl aniline; Ultrasonic speed; Viscosity