Almajose-Dalida EOS | Thermodynamically-consistent Twu-alpha (1988) 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) can be accessed through a separate link provided here.

The table below presents thermodynamically-consistent vapor pressure coefficients for the Almajose-Dalida equation of state, derived using the Twu (1988) alpha function. These values cover 100 compounds frequently used in process simulations. You may also use the search bar to quickly find coefficients for a specific substance.

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

The Twu (1988) alpha function is defined as:

Last edited: July 27, 2025

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