Activity Coefficient

Naef A.A. Qasem, Muhammad M. Generous, Bilal A. Qureshi, Syed M. Zubair*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


The activity coefficient is an important thermophysical property to consider the non-ideality of solutions. It is a corrective parameter for the solution concentration. This chapter presents multicomponent models, correlation, and data used to estimate activity coefficients at different salinity values. Also, the estimated activity coefficient values from the correlations and methods are compared and assessed against the experimental data of seawater. This chapter recommends some correlations and methods based on their accuracy and operating conditions. In addition, the codes used to predict the activity coefficient of saline water are provided.

Original languageEnglish
Title of host publicationSpringer Water
PublisherSpringer Nature
Number of pages11
StatePublished - 2023

Publication series

NameSpringer Water
VolumePart F1299
ISSN (Print)2364-6934
ISSN (Electronic)2364-8198

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.


  • Activity coefficient
  • Correlations
  • Ideality
  • Methods
  • Multicomponent
  • Saline water

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science
  • Environmental Science (miscellaneous)
  • Water Science and Technology
  • Earth and Planetary Sciences (miscellaneous)


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