LXXXIII.—Heterogeneous equilibria between the chlorides of calcium, magnesium, potassium, and their aqueous solutions. Part I

Isopiestic Determination of the Osmotic Coefficients of an Aqueous MgCl2 + CaCl2 Mixed Solution at (25 and 50) °C. Chemical Equilibrium Model of Solution Behavior and Solubility in the MgCl2 + H2O and MgCl2 + CaCl2 + H2O Systems to High Concentration at (25 and 50) °C

“…With only one exception (25 °C data of Shevchuk and Vaisfeld 47 ), the solubility data in the MgCl 2 + CaCl 2 + H 2 O system at (25 and 50) °C, available in the literature, are in excellent agreement. Reported phase diagrams at 25 °C of Van't Hoff, 43 Lee and Egerton, 44 Bury and Davies, 45 and Kurnakov and Nikolaev 46 consist of fields of equilibrium crystallization of MgCl 2 • 6H 2 O(cr), CaCl 2 • 6H 2 O(cr), and 2MgCl 2 • CaCl 2 • 12H 2 O(cr). In addition to these solids, Shevchuk and Vaisfeld 47 reported also precipitation of CaCl 2 • 4H 2 O(cr) from saturated solutions at the same temperature.…”

“…The model for highly soluble magnesium and calcium chloride minerals, as well as the experimental activity data, presented in this study represents a good base for development of such a comprehensive model. 43 Lee and Egerton, 44 Bury and Davies, 45 Kurnakov and Nikolaev, 46 and Shevchuk and Vaisfeld. 47 At 50 °C: Smith and Prutton, 48 Assarsson, 49 and Majima et al 50 The cross symbols on Figure 2a For more than 20 years, my research was focused on development of standard temperature and XTP-variable thermodynamic models for binary, ternary, and multicomponent industrial and natural systems with a wide range of applications.…”

Modeling of ionic equilibria of trace metals (Cu2+, Zn2+, Cd2+) in concentrated aqueous electrolyte solutions at 25 °C

“…Solubility of Ca(OH) 2 (portlandite) in NaNO 3 , NaCl, KCl, NaClO 4 [53], Ca(NO 3 ) 2 [24], and CaCl 2 [25] solutions; pL 0 = 5.29. Solubility of KCl (silvite) in KNO 3 [54], KHCO 3 [55], NaCl [56], KOH, HCl [57], CaCl 2 and MgCl 2 [58]; pL 0 = −0.91. Solubility of KNO 3 (niter) in HNO 3 [59], Ca(NO 3 ) 2 [60], NaNO 3 [61], KCl [54], KOH [62], K 2 CO 3 [63], and Mg(NO 3 ) 2 [64] solutions; pL 0 = 0.11.…”

First-Principles Study of Chemical Mixtures of CaCl2 and MgCl2 Hydrates for Optimized Seasonal Heat Storage

“…If the mixture modifies the molecular structure of the salt, it is called chemical mixture/double salt. CaCl 2 and MgCl 2 salts can form two types of chemical mixtures − in the molar ratio of 1:2 (CM1, CaCl 2 ·2MgCl 2 ) and 2:1 (CM2, 2CaCl 2 ·MgCl 2 ) as shown in Figure . These chemical mixtures (CMs) could exist in various hydrates, with hydration number ( n ) varying from 1 to 12.…”