This is an EOS of the “generalized cubics” category like the Trebble–Bishnoi–Salim equation. In comparison to simpler EOS, it has 2 additional parameters for the density dependence of the attraction term, and 1 parameter for its temperature dependence. Fo the latter, a correlation with the acentric factor exists.
The EOS gives good vapour pressure curves and liquid-density data for many compounds. The critical compression factor is adjustable.
adjustable parameters: 5
For mixture calculations the following mixing theories are available:
 D. Geană and V. Feroiu, “Ecuaţii de stare”, Editura Tehnica, Bucarest, 2000.
 C. Bogatu, A. Duţa, Th. W. de Loos, and D. Geană, Fluid Phase Equilib. (2016), in press.
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