Abstract
In this work, we propose an extension to electrolyte systems of the Cubic Plus Association (CPA) equation of state. The effect of the ionic charge is accounted for by a Born term, and a Mean Spherical Approximation (MSA) contribution for the coulombic interactions between permanent charges. The effect of the Born term on the excess properties is directly related to the change of the dielectric constant with concentration. This paper analyses the capacity of the model to represent the properties of aqueous solutions by comparison with experimental data of apparent molar volume and activity coefficients. In a first stage, we discuss the contribution of each term based on the water–NaCl and water–CaCl 2 systems. Simonin's model for the dielectric constant is found most convenient for describing the dielectric constant. In a second stage, the model is extended with success to a set of ten different salts in water.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
