Densities, rho, and speeds of sound, u, for the systems 2-methoxyethanol (2ME) + 2-ethoxyethanol (2EE), or + 2-butoxyethanol (2BE), or + 2-(2-methoxyethoxy)ethanol (22MEE) and for the 2-propoxyethanol (2PE) + dibutylether (DBE) mixture have been measured at (293.15, 298.15, and 303.15) K and atmospheric pressure using a vibrating-tube densimeter and sound analyzer (Anton Paar model DSA-5000). The rho and u values were used to calculate excess molar volumes, V-E, at the mentioned temperatures, molar excess heat capacities at constant volume, C-V(E), at 298.15 K, and deviations from the ideal behavior at 298.15 K of the thermal expansion coefficient, Delta alpha(P), and of the isentropic and isothermal compressibilities, Delta kappa(S) and Delta kappa(T), respectively. In DBE systems, H-E(molar excess enthalpy) and V-E decrease with the size of the 2-alkoxyethanol. In 2ME + alkoxyethanol mixtures, these magnitudes increase with the size of the second compound, although their values depend on the number of etheric atoms of this component.