Density, viscosity, refractive index, and speed of sound of ternary systems: Polystyrene in 1,4-dioxane plus tetrahydrofuran mixtures at (298.15, 303.15, and 308.15) K

Density, viscosity, refractive index, and speed of sound data are presented at (298.15, 303.15, and 308.15) K for polystyrene solutions of different concentrations in 1,4-dioxane + tetrahydrofuran mixtures over the entire composition range. These results are fitted to a fourth-order regression equation to derive the coefficients. The standard errors between the fitted and the experimental values have been calculated. Using the density and speed of sound data, adiabatic compressibility, molar compressibility, and specific acoustic impedance have been calculated.