Volumetric and viscometric properties observed for the mixtures of DMF (N,N-dimethyl formamide) and other alcohols (butanol and 1-propanol)

In this study, we have observed binary mixtures properties for (a) N,N-dimethyl formamide (DMF) + butanol, and (b) DMF + 1-propanol at different temperatures. These are useful solvents because of their various types of applications. Densities, molar volume, excess molar volume, viscosity, and excess viscosity of two binary systems DMF + 1-propanol, and DMF + butanol have been measured at five different temperatures ranging from 303.15 to 323.15 K, respectively. The volumetric and viscometric behaviours of DMF + alcohols are shown as a function of mole fraction of DMF. The molar volume of binary mixtures has been changed according to the chain length of alcohols. For DMF + 1-propanol system, the excess viscosities are found to be negative throughout the entire range of concentration.