The solubility and the critical relative humidity (H(cr)) of 14 drugs and inorganic salts were determined, the relationship between the H(cr) and the solubility was explored theoretically, and the H(cr) was calculated in the light of Raoult's law and Pitzer ion interaction model from their solubility. The results indicate that the H(cr) values calculated by Raoult's law in high humidity (H(cr)>...

Journal: Biochemistry and Cell Biology Manuscript ID bcb-2015-0046.R2 Manuscript Type: Article Date Submitted by the Author: 17-Jun-2015 Complete List of Authors: Fang, Christopher; Claremont McKenna, Pitzer, and Scripps Colleges, W. M. Keck Science Department Schmitz, Lars; Claremont McKenna, Pitzer and Scripps Colleges, W. M. Keck Science Department Ferree, Patrick; Claremont McKenna, Pitzer,...

A program has been developed for generating stability diagrams that concisely represent the thermodynamic state of multicomponent, multiphase aqueous systems in wide ranges of temperature and component concentrations. The diagrams are based on a thermodynamic model that combines the Helgeson-Kirkham-Flowers equation of state for standard-state properties with a solutions nonideality model based...

Available literature on the thermodynamic properties of binary CoSO4 – H2O system has been reviewed and used to derive a model for calculating solution phase equilibria in thermodynamically consistent manner. The is based Pitzer ion interaction approach and, with 10 adjustable parameters, able reproduce available data good accuracy from 270 374 K. length exact form temperature dependence was op...

Air is one of the most important substances used in industrial and technological applications. Applications air require a consistent set reliable data on its thermodynamic thermophysical properties. Over last few decades, researchers have developed number empirical theoretical models for correlation prediction properties pure fluids mixtures. The ideal gas Equation State (EoS) property calculat...

Calcium chloride is a highly soluble chemical compound involved in variable amounts many natural and industrial environments. The description of its properties mineral-solution equilibrium conditions must cover wide range temperatures compositions, including saline solutions. This article reports an improved model for the thermodynamic accurate CaCl2-H2O system according to Pitzer formalism fro...

A comprehensive mixed-solvent electrolyte model has been extended to calculate liquid– liquid equilibria in water–organic salt systems. Also, it has been applied to calculate phase equilibria and speciation in strongly associating systems such as sulfuric acid/oleum (H2SO4+SO3+H2O) in the entire concentration range. The model combines an excess Gibbs energy model with detailed speciation calcul...

the solubility of co2 in the primary, secondary, tertiary and sterically hindered amine aqueous solutions at various conditions was studied. in the present work, the modified kent-eisenberg (m-ke), the extended debye-hückel (e-dh) and the pitzer models were employed to study the solubility of co2 in amine aqueous solutions. two explicit equations are presented to evaluate the concentration of h...