Solid–liquid equilibrium of quaternary system Na+//H2PO4−, Cl−, SO42−–H2O at 298.15K

Phase Diagrams and Physicochemical Properties for the Ternary System (CsCl + NaCl + H2O) at T = (298.15, 308.15, and 318.15) K

“…However, the coexistence of the salts has greatly influenced the application of such resources. , Data of solubility in water–salt systems supply a very important foundation for the separation and purification progress. So the investigation of phase equilibria plays an important role in the process of the rational use of salt resources and industrial applications. − For example, Li + always coexists with Mg 2+ , so the lithium resource separation process is according to the solubility phenomenon. , Similarly, industrial KH 2 PO 4 can be prepared by an ion exchange method, direct chemical conversion method, crystallization method, and solvent extraction method with KCl based on phase equilibria. , However, new compounds and a solid-solution were often formed in the mixed electrolyte systems contain Cs + . For example, Jendoubi et al studied the mixing enthalpies in the solid-solution (Cs 1– x ,Rb x )­NO 3 at temperatures from 298.15 to 473.15 K. Yariv et al found that the new salt Cs­[Na­(H 2 O)] 2 Br 3 and solid-solution Cs 1– x [Na­(H 2 O)] x Br ( x ≤ 0.48) were formed in the ternary system (NaBr + CsBr + H 2 O) at 298.15 K. However, when HCl was added as a solvent in the system CsCl + TbCl 3 + HCl (∼7.6 mass %) at 298.2 K, two new compounds Cs 5 TbCl 8 ·6H 2 O and Cs 2 TbCl 5 ·6H 2 O were found in the system.…”

Solid–Liquid Phase Equilibrium for the Reciprocal Quaternary System (Na+, Cs+//Cl–, SO42––H2O) at T = 298.15 K and 0.1 MPa

“…In order to evaluate the reliability of the experimental data in this work, the solubility data, densities, and refractive indices of the subternary systems at 298.15 K were compared with the results in the literature. ,, It was found that the experimental results agreed well with the reported data, indicating our experimental and analytical methods were reliable.…”

Experimental Determination and Fitting of Solid–Liquid Equilibria in the Ternary System BaO–P2O5–H2O at 323.2 K

“…The solid–liquid equilibrium of the ternary BaO–P 2 O 5 –H 2 O system at 323.2 K was studied by the isothermal dissolution equilibrium method − adding excessive Ba­(OH) 2 ·8H 2 O to water to ensure that the solid still exists after full dissolution. Phosphoric acid of different masses was added into each Ba­(OH) 2 ·8H 2 O saturated solution separately.…”