Excess enthalpies, excess heat capacities, excess volumes and sound velocities of the mixture of dioxane isomers, 1,3-dioxane
and 1,4-dioxane, were measured. One of the isomers, 1,4-dioxane is considered as non-polar liquid and the other as polar liquid.
Excess enthalpies are positive and small, less than 55 J mol-1. Excess heat capacities are also very small and the curve is W-shaped, and the values are from 0.03 to -0.08 J mol-1 K-1. Excess volumes and excess isentropic compressibilities are small and positive, and less than 0.03 cm3 mol-1 and 0.8 TPa-1.