Abstract
For the modeling of activity coefficients and solubility of amino acids that are predominantly present as zwitterions in neutral aqueous solutions, excess Gibbs energy ( G E) models and Helmholtz free energy models in which solvent is considered as a dielectric continuum have been used. In the present study, charges in zwitterions were considered as proton donors and acceptors. The hydrogen-bonding nonrandom lattice fluid equation of state (EOS) was adopted to account for the specific interactions as well as physical interactions. Parameters were fitted to vapor pressure and density for water and to activity coefficients and partial molar volumes at infinite dilution for amino acids. The calculated densities, activity coefficients and solubilities were in good agreements with data.
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.
