Densities, r, of 2-Ethoxyethanol (EGMEE) + 1,4-Dioxane (DXN) and 2-Butoxyethanol (EGMBE) + 1,4-Dioxane (DXN) systems have been measured in the whole range of composition at an interval of 5 K ranging from 303.15 to 323.15 K. Excess molar volumes, , partial molar volumes, , thermal expansivities,a, and excess thermal expansivities, aE, have been estimated from the experimental values of ρ. All of the derived properties have been fitted to appropriate polynomials. Values of and aE were fitted to the Redlich-Kister polynomial equation and their variations with composition and temperature have been discussed in terms of molecular interaction in the mixtures. Values of and aE were all positive and were attributed due to specific interactions
