Viscosities and Densities of 2,2,2-Trifluoroethanol + Water at Various Temperatures

Abstract

The densities and viscosities at 298, 303, 308 and 313 K for 2,2,2-trifluoroethanol + water were determined. From experimental results, the excess viscosity and excess molar free energy of activation of flow were computed and are presented as a function of the mole fraction of 2,2,2-trifluoroethanol. The deviation from additivity in the values of the excess parameters is discussed in terms of the strength of the interaction between the components of the mixture.