EXCESS VOLUMES AND SPEED OF SOUND OF TERNARY MIXTURES OF 2-METHOXYETHANOL (1) PLUS BUTYL ACETATE (2) PLUS AROMATIC-HYDROCARBONS (3) AT 303.15-K

Excess volumes and the speed of sound of five ternary mixtures of 2-me thoxyethanol (1) + butyl acetate (2) + benzene (3), + toluene (3), + c hlorobenzene (3), + bromobenzene (3), and + nitrobenzene (3) have been measured at 303.15 K. The excess volumes exhibit positive deviation o ver the entire range of composition in the system 2-methoxyethanol (1) + butyl acetate (2) + benzene (3) and sigmoid behavior in the case of the remaining systems. The deviation in the isentropic compressibilit y exhibits a sigmoid behavior in all the mixtures. The results were co mpared with those predicted by empirical equations.