Author/Authors :
Reza Shahriari Thermodynamics Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran , Iran , Mohammad Reza Dehghani Thermodynamics Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran , Iran , Bahman Behzadi Thermodynamics Research Laboratory, School of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran , Iran
كليدواژه :
PHSC , electrolyte solution , MSA , equation of state
چكيده لاتين :
A new electrolyte equation of state, eP-PHSC (electrolyte polar perturbed hard sphere chain) has
been used for calculation of the mean activity coefficient and density of aqueous electrolyte
solutions at ambient conditions (25○C and 1bar). In this work the perturbed hard sphere chain
(PHSC) equation of state has been extended to the electrolyte systems by incorporating the
electrostatic (Mean spherical approximation term), polar and association terms. In this model using
polar and association terms, the specific interactions between molecules have been taken into
accounts. The ion specific approach has been used to obtain the global ion parameters. The
average absolute relative deviation for calculation of mean ionic activity coefficients and density
were 1.32% and 0.572% respectively. It can be concluded that the presented model could correlate
the experimental results efficiently
