@property<EOL><INDENT>def rhol(self):<DEDENT>
Vml = self.Vml<EOL>if Vml:<EOL><INDENT>return Vm_to_rho(Vml, self.MW)<EOL><DEDENT>return None<EOL>
r'''Liquid-phase mass density of the chemical at its current
        temperature and pressure, in units of [kg/m^3]. For calculation of this
        property at other temperatures and pressures, or specifying manually
        the method used to calculate it, and more - see the object oriented
        interface :obj:`thermo.volume.VolumeLiquid`; each Chemical instance
        creates one to actually perform the calculations. Note that that
        interface provides output in molar units.

        Examples
        --------
        >>> Chemical('o-xylene', T=297).rhol
        876.9946785618097