A method to find the liquid-gas critical parameters of metallic elements is offered. It takes into account a nonanalytic behavior in the critical point vicinity and the Clapeyron-Clausius asymptotic behavior at low temperatures. The present approach provides good agreement with experimental data for a wide wealth of non-metallic substances and mercury and alkali metals, where the critical parameters and binodals are known from the measurements. We have also found the critical parameters and binodals for Al, Cu, Fe, and Zr, for which corresponding measurements are yet to be obtained.
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