in need of a consistent EOS to test phase equilibria solvers

[longemen3000]

A lot of recent methods that solves phase equilibria take the assumption of a consistent EOS: one where there are only two Maxwell loops on the P-V curve, IAPWS95 and GERG2008. are empirical, non-consistent methods, as they have a third maxwell loop where a false pseudostable phase (with a lower gibbs energy than the true equilibrium). global minimizations (like the HELD method) or newton with linesearch minimizations of the hessian fail to account for that, so a method with expensive volume search evaluations is needed for non-consistent EOS.