Viscosities and densities of the ternary solvent systems of 1,4-dioxane + 1-hexanol and N,N-dimethylaniline were measured at several temperatures between T ) (283.15 and 343.15) K at atmospheric pressure over the whole composition range. The experimental results are used to calculate viscosity deviations, ∆η, of the ternary system. The calculated binary data have been fitted to the Redlich-Kister equation to determine the appropriate coefficients. To determine the coefficients of ternary data, Cibulka, Singh, and Nagata equations were used. This work also provides a test of the Grunberg and Nissan equation for correlating the dynamic viscosities of binary and ternary mixtures with mole fractions.

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