Ultrasonic studies on binary and ternary mixtures of some organic liquids

The thermodynamic excess functions of a composition of chloroform and ketones were studied in this work. The ketones used as acetophenone, cyclophexanone and ethyl methyl ketone. Ultrasonic velocity for the liquid mixtures are measured over a wide range of concentrations, using a single crystal ultrasonic interferometer at a frequency of 2 MHz. For binary mixtures of chloroform with acetophenone and cyclohexanone, surface tension increases with increase in concentration of the ketone. But for the binary mixtures of chloroform and ethyl methyl ketone surface tension decreases with increase in concentration of the ketone.