The application of the Zeno line similarities to alkaline earth metals

We show that similarity relations connected with the line of the unit compressibility factor (Zeno line) is valid for the alkaline earth metals Mg, Ca, Sr and Ba. We have applied the Monte Carlo simulations in the canonical ensemble to establish linearity of the Zeno line and to find its parameters. We have also constructed liquid-gas binodals for these metals which describes the available low temperature measurements data. We check the other relations linking the critical and Zeno line parameters and found that they are correct within the range of experimental errors.