Measurement and thermodynamic model study on equilibrium solubility in the aqueous system of magnesium chloride and magnesium bromide
Source abstract
Abstract
Abstract Solubilities of the ternary system MgCl 2 –MgBr 2 –H 2 O at T =(288.15, 308.15, 323.15 and 333.15) K were investigated, and the crystallization behaviour of solid solution Mg(Cl,Br) 2 ·6H 2 O was established. Combining our experimental results with other experimental data available in the literature at T =(298.15 and 313.15) K, the pure electrolyte solution parameters for binary systems, the T -variation mixing parameters θ Cl,Br and ψ Mg,Cl,Br and the equilibrium constants equations of the solid solution were obtained. Based on Pitzer model and Harvie–Weare solubility approach, the solubility modelling approach achieved a very good agreement with chloride and bromide salts equilibrium solubility data. Temperature-dependent equation in the system provides reasonable mineral solubility at T =(288.15–333.15) K. This model expands the solubility calculation in the systems containing solid solution by evaluating chloride–bromide mixing solution parameters. Limitations of the mixed solution models due to data insufficiencies are discussed.
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Research context
OpenAlex topics: Chemical and Physical Properties in Aqueous Solutions · Calcium Carbonate Crystallization and Inhibition · Crystallization and Solubility Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Zheng · 1988 · 169
2. On the origin of saline fluids in the KTB (continental deep drilling project of Germany)10.1016/S0883-2927(97)00085-1 ↗
3. Br/Cl ratios and O, H, C, and B isotopic constraints on the origin of saline waters from eastern Canada10.1016/j.gca.2007.02.011 ↗
4. The determination of bromine coexistence with chlorine in the solution
5. Boeke · Z. Kryst. Miner. · 1908 · 45 · 354
6. Nikaraiv · IFXA, SU Acad. Sci. · 1935 · 7 · 143
7. N.I. Timohina, N.I. Barabohina, T.B. Muzykantova, in: Proceedings Tashkent State University, vol. 419,1972, p. 10.
8. Phase equilibrium study of system MgCl2–MgBr2–H2O at 25°C
9. Weng · 2008 · 48
10. Study of bromide salts solubility in the (m1NaBr+m2MgBr2)(aq) system at T=323.15K. Thermodynamic model of solution behavior and (solid+liquid) equilibria in the (Na+K+Mg+Br+H2O) system to high concentration and temperature10.1016/j.jct.2011.11.003 ↗
11. Thermodynamics of electrolytes. I. Theoretical basis and general equations10.1021/j100621a026 ↗
12. Pitzer · 1992
13. The prediction of mineral solubilities in natural waters: the Na–K–Mg–Ca–Cl–SO4–H2O system from zero to high concentration at 25°C10.1016/0016-7037(80)90287-2 ↗
14. The prediction of mineral solubilities in natural waters: the Na–K–Mg–Ca–H–Cl–SO4–OH–HCO3–CO3–CO2–H2O system from zero to high concentration at 25°C10.1016/0016-7037(84)90098-X ↗
15. Phase equilibrium for the aqueous system containing lithium, sodium, potassium, chloride, and borate ions at 298.15K10.1021/je049975f ↗
16. Solid–liquid metastable equilibria of the reciprocal quaternary system (LiCl+MgCl2+Li2SO4+MgSO4+H2O) at 323.15K10.1021/je200563j ↗
17. Solubility prediction for the system of MgCl2–MgSO4–MgB4O7–H2O at 298.15K using the ion-interaction model10.1134/S0036023611080158 ↗
18. Solubility prediction for LiCl–Li2SO4–Li2B4O7–H2O system at 298.15K using ion-interaction model10.1252/jcej.12we050 ↗
19. Temperature variable chemical model of bromide-sulfate solution interaction parameters and solid–liquid equilibria in the Na–K–Ca–Br–SO4–H2O system10.1016/j.calphad.2011.11.003 ↗
20. Christov · J. Chem. Thermodyn. · 2011 · 43 · 34410.1016/j.jct.2010.10.006 ↗
21. Christov · Calphad · 2011 · 35 · 4210.1016/j.calphad.2010.11.001 ↗
22. An isopiestic study of aqueous NaBr and KBr at 50°C: chemical equilibrium model of solution behavior and solubility in the NaBr–H2O, KBr–H2O and Na–K–Br–H2O systems to high concentration and temperature10.1016/j.gca.2007.05.007 ↗
23. Christov · J. Chem. Thermodyn. · 2012 · 55 · 710.1016/j.jct.2012.06.006 ↗
24. Hu · Solubility prediction in the ternary systems NaCl–RbCl–H2O, KCl–CsCl–H2O and KBr–CsBr–H2O at 25°C using the ion-interaction model, Calphad · 2007 · 31 · 541
25. Stable phase equilibrium of the aqueous quaternary system (MgCl2+MgSO4+MgB6O10+H2O) at 323.15K10.1021/je2006852 ↗
26. The phase diagrams of the systems (MgCl2+MgB6O10+H2O) and (MgSO4+MgB6O10+H2O) at 323.15K and Pitzer model10.1134/S0036024412100160 ↗
27. Qinghai Institute of Salt Lakes · 1988
28. Studies on the application of the wet residues method in phase equilibrium for the salt-water systems
29. Calculation of the solubility data of the K2SO4–(NH4)2SO4–H2O and KCl–NH4Cl–H2O three-component systems containing solid solution
30. Phase diagram for the ternary system of K+/CI−,Br−–H2O at 298K, 313K and 333K
31. Solid–liquid equilibrium of NaCl–NaBr–H2O ternary system
32. The prediction of mineral solubilities in natural water: a chemical equilibrium model for the Na–K–Ca–Mg–Cl–SO4–H2O system at temperature below 25°C10.1016/0016-7037(90)90354-N ↗
33. Thermodynamics of concentrated electrolyte mixtures and the prediction of mineral aolubilities to high temperatures for mixtures in the system Na–K–Mg–Cl–SO4–OH–H2O10.1016/0016-7037(87)90295-X ↗
34. The prediction of mineral solubilities in natural waters: a chemical equilibrium model for the Na–Ca–Cl–SO4–H2O system to high temperature and concentration10.1016/0016-7037(88)90354-7 ↗
35. Chemical equilibrium model of solution behaviour and solubility in the H–Na–K–OH–Cl–HSO4–SO4–H2O system to high concentration and temperature10.1016/j.gca.2003.08.017 ↗
36. A chemical equilibrium model of solution behavior and solubility in the H–Na–K–Ca–OH–Cl–HSO4–SO4–H2O system to high concentration and temperature10.1016/j.gca.2004.03.006 ↗
37. Thermodynamic modeling of aqueous aluminum chemistry and solid liquid equilibria to high solution concentration and temperature, I, the acidic H–Al–Na–K–Cl–H2O system from 0 to 100°C10.1007/s10953-007-9191-9 ↗
38. Chemical equilibrium model of solution behavior and bishofite (MgCl2·6H2O(cr)) and hydrogen–carnallite (HCl·MgCl2·7H2O(cr)) solubility in the MgCl2+H2O and HCl–MgCl2+H2O systems to high acid concentration at (0 to 100)°C10.1021/je900135w ↗
39. Investigation of the aqueous lithium and magnesium halide systems10.1007/BF00972747 ↗
40. Thermodynamics of formation of double salts and solid solutions from aqueous solutions10.1016/j.jct.2005.01.008 ↗