In this work, ternary diffusion coefficients of diethylene glycol and lithium chloride in aqueous solutions containing diethylene glycol and lithium chloride were reported for temperatures (303.2, 308.2, and 313.2 K) using the Taylor dispersion method. The investigated ternaries contained total glycol-salt concentrations of 10, 15, and 20 wt%. The main diffusion coefficients (D-11 and D-22) and the cross-diffusion coefficients (D-12 and D-21) were discussed as function of temperature and concentration. A modified equation originally proposed by Batchelor [1] for mixture of hard spheres in a continuum solvent was used to correlate the present diffusion coefficient data and the results are satisfactory. (C) 2010 Elsevier B.V. All rights reserved.