The results of excess molar volumes for the ternary mixture {N,N-dimethylformamide (DMF) + ethanol + water}, and for the binary constituents (DMF + water), (DMF + ethanol), and(ethanol + water) at T = 298.15 K were reported. Several empirical expressions were used to predict and correlate the ternary excess molar volumes. A pseudo-binary mixture approach was used to analyse the system studied. The partial molar volumes of ethanol at infinite dilution, and the apparent molar volumes of (DMF + water) mixed solvent at several fixed compositions were evaluated and correlated with the composition of the (DMF + water) mixed solvent. (C) 1998 Academic Press.