Comparative study of physico-chemical properties of binary mixtures of N,N-dimethylformamide with 1-alkanols at different temperatures

► Physical properties of binary mixtures of DMF + 1-pentanol, 1-hexanol or 1-heptanol. ► Densities, refractive indices and speed of sound were measured. ► VE, κsE, uD and nDE were calculated using the experimental data. ► Speed of sound data were analyzed using different theories and relations. ► Different mixing rules were used to predict the experimental refractive indices.