Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

ThermoData Engine (TDE) Version 6.0 (Pure Compounds, Binary Mixtures, Ternary Mixtures, and Chemical Reactions)



Michael D. Frenkel, Robert D. Chirico, Vladimir Diky, Chris D. Muzny, Andrei F. Kazakov, Joe W. Magee, Ilmutdin M. Abdulagatov, Kenneth G. Kroenlein, Jeong W. Kang


ThermoData Engine (TDE) is the first full-scale software implementation of the dynamic data evaluation concept. In the present release, properties for ternary mixtures are calculated through combination of critically evaluated results for the constituent binaries. Activity coefficient models, included in previous releases involving binary systems, are applied for calculation of vapor-liquid (VLE) and liquid-liquid equilibrium (LLE) properties. The Redlich-Kister nist-equation is applied for calculation of excess enthalpies, viscosities, and densities for ternary mixtures from the evaluated binary data. Interface modifications for display of ternary phase diagrams are included. A new test for thermodynamic consistency of VLE data at high pressures is also included.


dynamic data evaluation, ternary mixtures, activity coefficient models, critical data evaluation, thermodynamic properties, thermophysical properties
Created September 27, 2011, Updated February 19, 2017