Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Multiparameter Equations of State - Recent Trends and Future Challenges



R Span, Wolfgang Wagner, Eric Lemmon, R Jacobsen


The purpose of this article is to update the common knowledge on characteristic features of empirical multi-parameter equations of state, to increase the confidence of potential users, and possibly to attract other scientists to theoretical and experimental work that is relevant for the future development of these kinds of thermodynamic property models. To do so, the most important features of current multiparameter equations of state and of the algorithms which are used to develop such formulations are briefly explained. Future challenges are outlined with regard both to the development of multiparameter equations of state and to the underlying experimental basis. Relevant references are given for further studies.
Fluid Phase Equilibria
No. 183


empirical, equation of state, general overview, mixture, multiparameter


Span, R. , Wagner, W. , Lemmon, E. and Jacobsen, R. (2001), Multiparameter Equations of State - Recent Trends and Future Challenges, Fluid Phase Equilibria (Accessed May 18, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created June 30, 2001, Updated October 12, 2021