Volumetric properties and ultrasonic velocities of binary mixtures of 2-butanone with alkyl acetates at (298.15 to 308.15) K

Department of Chemistry. Dr. Babasaheb Ambedkar Marathwada University, Aurangabad-431 004,
Maharashtra, India
E-mail : abr_chem@yahoo.co.in
Manuscript received 27 July 2010, revised 31 March 2011, accepted 31 March 2011

Densities and ultrasonic velocity of the binary mixtures of 2-butanone with alkyl acetates such as methyl acetate, ethyl acetate, 1-propyl acetate and 1-butyl acetate were measured at 298.15, 303.15 and 308.15 K over the entire composition range. This experimental data were used to calculate excess molar volumes (V^E), deviations in isentropic compressibility (ΔK,). These results were fitted to Redlich-Kister polynomial equation and results have been discussed in terms of molecular interaction and structural effects. The excess properties were found to be either positive or negative depending on the molecular interaction and the nature of liquid mixtures.