The excess molar volumes V-m(E) and excess molar enthalpies H-m(E) at T = 298.15 K and atmospheric pressure for the binary systems of 1,2-dichloropropane (1,2-DCP) with di- and triethylene glycol mono-alkyl ethers have been determined by measuring density and heat flux, respectively. The density has been measured by using a digital vibrating-tube densimeter, whereas heat flux measurements have been carried out by using an isothermal calorimeter with a flow-mixing cell. The diethylene glycol mono-alkyl ethers are 2(2-alkoxyethoxy)ethanols: diethylene glycol mono-propyl ether (DEGMPE), diethylene glycol mono-butyl ether (DEGMBE). and the triethylene glycol mono-alkyl ethers are 2-(2-(2-alkoxyethoxy)ethoxy)ethanols: triethylene glycol mono-methyl ether (TEGMME), triethylene glycol mono-ethyl ether (TEGMEE), and triethylene glycol mono-butyl ether(TEGMBE). It was found that both V-m(E) and H-m(E) values of the binary mixtures are negative over the whole composition range except for the mixture with very high mole fraction of 1,2-DCP(x(1)) in both DEGMPE and DEGMBE. In the case of 2-(2-(2-alkoxyethoxy)ethoxy)ethanols, the negative values of V-m(E), and H-m(E) continue to increase with an increase of the alkyl chain length of these alkoxyethanols. The minimum values of V-m(E) shift from -0.1939 cm(3) mol(-1) for the mixture with DEGMPE to -0.40 cm(3) mol(-1) for the mixture with TEGMBE at x(1) = 0.40-0.50. Also, the minimum negative values of H-m(E) have been shown ranging from -472.9 J mol(-1) (DEGMBE) to -800.5 J mol(-1) (TEGMBE) at x(1) = 0.40-0.50. The experimental results of both H-m(E) and V-m(E) were fitted to the Redlich-Kister equation. The experimental H-m(E) data were also fitted to three local-composition models (Wilson, NRTL, and UNIQUAC). It was found that among these three models, the NRTL equation provides the most appropriate correlating result. (C) 2009 Elsevier B.V. All rights reserved.