The measures and calculation of different properties such as refractive
index, density, speed of sound, excess molar volume, and isentropic
compressibility of the ternary heterogeneous compounds by ethanol +
water + (n-hexane, n-heptane, n-octane, n-nonane) have been performed
in the range 288.15–323.15 K and atmospheric pressure. Attending to
the accurate results of these models, the equation of state enclosing
mixing rules is indicated as a simple estimation of the procedures of
these properties for this kind of multicomponent systems.