Almajose-Dalida EOS | Thermodynamically-consistent Twu-alpha (1991) Coefficients

The table below presents the updated thermodynamically-consistent vapor pressure coefficients for the Almajose-Dalida equation of state, derived using the three-parameter Twu (1991) alpha function. These values cover 1100+ 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 (1991) alpha function is defined as:

You may also use the search bar below to quickly find coefficients for a specific substance.