Solubilities, Densities and Refractive Indices of Rubidium Chloride or Cesium Chloride in Ethanol Aqueous Solutions at Different Temperatures

Abstract

The data of solubilities, densities and refractive indices of rubidium chloride or cesium chloride in the system C 2 H 5 OH-H 2 O were measured by using a simple accurate analytical method at different temperatures, with mass fractions of ethanol in the range of 0 to 1.0. In all cases, the presence of ethanol significantly reduced the solubility of rubidium chloride and cesium chloride in aqueous solution. The solubilities of the saturated solutions were fitted via polynomial equations as a function of the mass fraction of ethanol. The CsCl-C 2 H 5 OH-H 2 O ternary system appeared in two liquid phases: alcoholic phase and water phase, when the mass fractions of ethanol were in the range of 10.37% to 49.59% at 35 ℃. Density and refractive index were also determined for the same ternary systems with varied unsaturated salt concentrations. Values for both experiment and theory were correlated with the salt concentrations and proportions of alcohol in the solutions. The equations proposed could also account for the saturated solutions.

Solid–Liquid Equilibrium (SLE) of the N,N-Dimethylacetamide (DMA) + MCl (M = Na, K, Rb, and Cs) + Water Ternary Systems at Multiple Temperatures

“…The solubilities, densities, and refractive indices for DMA (1) + NaCl/KCl/RbCl/CsCl (2) + H 2 O (3) systems at 298.15 K, 308.15 K, and 318.15 K are given in Table and Figures to . For comparison, the solubilities of NaCl, KCl, RbCl, and CsCl in pure water at 298.15 K are listed in Table S2, which are in good agreement with the literature values. , …”

“…16,17 Secondary amides S2, which are in good agreement with the literature values. 19,20 In Figure 3, it can be observed that the solubility decreased by increasing the ratio of DMA to water in the solvent. The effect of the temperature is that higher temperatures increase the solubility.…”

Measurements and Correlations of the Solid–Liquid Equilibrium of RbCl/CsCl + [Cnmim]Cl (n = 2, 4, 6, 8) + H2O Ternary Systems at T = (288.15, 298.15, and 308.15) K

“…Thus, the addition of ILs to the aqueous solution of inorganic salts may cause the salting-out effect and can be employed in crystallization for producing supersaturation in a solution. In the past decade, our group has focused on the phase behavior of the ternary or quaternary systems consisting of the heavy alkaline metal (Rb, Cs) salts and organic solvent–water mixtures , to evaluate the application of the salting-out effect in increasing the yield of expensive Rb and Cs salts. As a continuation of our series work, we reported herein the solubility, density, and refractive index of RbCl/CsCl + ILs + H 2 O ternary solutions.…”

Solubility, Density, Refractive Index, and Viscosity for the Polyhydric Alcohol + CsBr + H2O Ternary Systems at Different Temperatures

“…In recent years, our group focused on the study of phase behavior of monohydric alcohol + rubidium or cesium salts + water ternary systems at different temperatures to investigate the salting effect of monohydric alcohol, such as ethanol, − 1-propanol, or 2-propanol. , To extend our work, the polyhydric alcohol is chosen instead of monohydric alcohol in this work. Herein, we report the solubility, refractive index, density, and viscosity for the ternary systems polyhydric alcohol + CsBr + H 2 O at various temperatures.…”