Almajose-Dalida EOS | Thermodynamically-consistent Heyen-alpha Coefficients

This dataset corresponds to the earlier 100-compound set published in Fluid Phase Equilibria and is included here for reference. The updated generalized dataset (1,100+ compounds) will be made available through a separate link once released.

The table below lists the thermodynamically-consistent vapor pressure coefficients for the Almajose-Dalida equation of state, calculated using the Heyen alpha function, for 100 compounds commonly encountered in process simulations. Alternatively, you may use the search bar to quickly retrieve coefficients for a specific compound.

In using the coefficients below, the equation of state critical parameters are obtained via the generalized correlations for ΩA, ΩB, and ΩC:

The Heyen alpha function is defined as:

Last edited: July 27, 2025

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