Volumetric, speed of sound data and viscosity at (303.15 and 308.15) K for the binary mixtures of N,N-dimethylaniline + aliphatic ketones (C3–C5), +4-methyl-2-pentanone, +acetophenone, +cyclicketones

Abstract

Measurement of densities (ρ), ultrasonic sound speeds (u) and viscosities (η) has been carried out for binary mixtures of N,N-dimethylaniline (N,N-DMA) with acetone(AC), methylethylketone (MEK), methylpropylketone (MPK), diethylketone (DEK), methylisobutylketone (MIBK), acetophenone (AP), cyclopentanone (CP), cyclohexanone (CH) and 2-methylcyclohexanone (MeCH) and their pure liquids at (303.15K and 308.15)K over the entire composition range. These experimental data have been used to calculate the excess molar volume (VE), deviation in ultrasonic sound velocity (Δu), deviation in isentropic compressibility (Δκs) and deviation in viscosity (Δη) were evaluated. The variation of these properties with composition of the mixtures suggests dipole–dipole interactions and charge transfer complex formation between N,N-dimethylaniline and ketones. The magnitude of the property is found to depend on the chain length of the ketones molecule. These results have been fitted to the Redlich–Kister polynomial equation. The viscosity data have been correlated using three equations; Grunberg and Nissan, Katti and Chaudhri, Hind et al. for the system studied.