  The phase diagram of the attractive hard-core Yukawa fluid derived previously
[M. Robles and M. L\'opez de Haro, J. Phys. Chem. C 111, 15957 (2007)] is used
to obtain the liquid-vapor coexistence curve of real water. To this end, the
value of the inverse range parameter of the intermolecular potential in the
Yukawa fluid is fixed so that the ratio of the density at the critical point to
the liquid density at the triple point in this model coincides with the same
ratio in water. Subsequently, a (relatively simple) nonlinear rescaling of the
temperature is performed which allows one to obtain the full liquid vapor
coexistence curve of real water in the temperature-density plane with good
accuracy, except close to the triple point. Such rescaling may be physically
interpreted in terms of an effective temperature-dependent attractive hard-core
Yukawa interaction potential which in turn introduces an extra temperature
dependence in the equation of state. With the addi- tion of a multiplicative
factor to obtain from the model the critical pressure of real water, the
corrected equation of state yields reasonably accurate isotherms in the liquid
phase region except in the vicinity of the critical isotherm and in the
vicinity of the triple point isotherm. The liquid-vapor coexistence curves in
the pressure-temperature and pressure-density planes are also computed and a
possible way to improve the quantitative agreement with the real data is
pointed out.
