Vapor pressure p of LiBr+C2H5OH and LiCl+C2H5OH solutions at T = 298.15-323.15K were reported, osmotic and activity coefficients (phi, gamma) and activity of solvent a(s) have been evaluated. The experiments were carried out for LiBr+C2H5OH solutions in the molality range m=0.16974-2.81350 mol kg(-1) and for LiCl+C2H5OH solutions in the molality range m=0.17923-3.75911 mol kg(-1). The Antoine equation for the empirical description of experimental vapor pressure results and the Pitzer-Mayorga model with inclusion of Archer's ionic strength dependence of the third virial coefficient for the correlation of osmotic coefficients was used. The parameters of Archer extended Pitzer-Mayorga model were used for evaluation of activity coefficients. (c) 2006 Elsevier B.V. All rights reserved.