The excess molar volumes V-m(E), isothermal compressibilities k, and thermal expansivities a of {(1-x)H2O+xCH(3)OH} at T = (298.15 to 523.15) K, at pressures up to 60 MPa and at x = (0.25, 0.50, and 0.75) mole fractions of methanol are reported. These properties are calculated from the experimental densities for the solutions, carried out with a constant volume piezometer over these intervals of state parameters. Calculated excess molar volumes, isothermal compressibilities, and thermal expansivities are tabulated. (C) 2004 Elsevier Ltd. All rights reserved.