Isopiestic Investigation of the Osmotic and Activity Coefficients of Aqueous MgSO4 and the Solubility of MgSO4X7H2O(cr) at 298.15K: Thermodynamic Properties of the MgSO4 + H2O System
Donald G. Archer, J A. Rard
Isopiestic determinations of the osmotic coefficient of MgSO4(aq) against NaCl(aq) and Kcl(aq) reference standards were performed with long equilibration times ranging to 98 days. A value of the 298.15 K solubility of epsomite, MgSO47H2O was also determined. The new measurements were combined with previous thermodynamic measurements to determine the thermodynamic properties of the MgSO4 +H2O system from the ice-freezing line to 440 K. The thermodynamic measurements were fitted with two different models, an ion-interaction model and a chemical-equilibrium model. The ability of the two models to represent this system was examined.
and Rard, J.
Isopiestic Investigation of the Osmotic and Activity Coefficients of Aqueous MgSO<sub>4</sub> and the Solubility of MgSO<sub>4</sub>X7H<sub>2</sub>O(cr) at 298.15K: Thermodynamic Properties of the MgSO<sub>4</sub> + H<sub>2</sub>O System, Journal of Chemical and Engineering Data
(Accessed December 9, 2023)