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Ying Zeng - One of the best experts on this subject based on the ideXlab platform.
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phase equilibria for the aqueous reciprocal quaternary system rb mg2 cl borate h2o at 348 k
Journal of Chemical & Engineering Data, 2014Co-Authors: Qinghong Yin, Qi Tan, Ying ZengAbstract:Phase equilibria for the reciprocal quaternary system containing Rubidium, magnesium, Chloride, and borate in aqueous solution at 348 K was investigated by isothermal dissolution method. The compositions, densities, and refractive indices of the solution at equilibrium were measured experimentally. The space phase diagram, the planar projection diagram, the water content diagram, and the diagrams of the physicochemical properties (densities and refractive indices) vs composition were constructed using the measured data. Results indicate that the quaternary system is a complex type along with the double salt Rubidium carnallite (RbCl·MgCl2·6H2O) formed at 348 K. The planar projection diagram consists of three invariant points, seven univariant curves and five crystallization zones corresponding to four single salts Rubidium pentaborate tetrahydrate (RbB5O6(OH)4·2H2O), hungchaoite (MgB4O5(OH)4·7H2O), Rubidium Chloride(RbCl), bischofite(MgCl2·6H2O), and a double salt of Rubidium carnallite (RbCl·MgCl2·6H2O)....
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solid liquid equilibrium in the aqueous system containing the Chlorides of lithium Rubidium and magnesium at 323k
Fluid Phase Equilibria, 2014Co-Authors: Dongbo Jiang, Qi Tan, Ying ZengAbstract:Abstract The densities, refractive indices and compositions of solutions of electrolyte mixtures in quaternary system LiCl + RbCl + MgCl 2 + H 2 O at 323 K were determined by isothermal evaporation method. The stereo phase diagram, the metastable phase diagram, the water content diagram, and the diagrams of the physicochemical properties depending on the composition were obtained using the measured data. The metastable phase diagram of this quaternary system contains three invariant points (H 1 , H 2 , and H 3 ), seven univariant curves, and five crystallization fields corresponding to single salts lithium Chloride monohydrate (LiCl·H 2 O), Rubidium Chloride (RbCl), magnesium Chloride hexahydrate (MgCl 2 ·6H 2 O), and two double salts: lithium carnallite (LiCl·MgCl 2 ·7H 2 O) and Rubidium carnallite (RbCl·MgCl 2 ·6H 2 O). The scope of areas of crystallization of salts is such that RbCl·MgCl 2 ·6H 2 O > RbCl > LiCl·H 2 O > MgCl 2 ·6H 2 O > LiCl·MgCl 2 ·7H 2 O. The physicochemical properties of the solutions, at equilibrium, change regularly with the change of the concentration of MgCl 2 .
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metastable phase equilibrium in the quaternary system licl kcl rbcl h2o at 348 15 k
Journal of Chemical & Engineering Data, 2013Co-Authors: Qinghong Yin, Ying Zeng, Qi TanAbstract:The metastable phase equilibrium of the quaternary system LiCl + KCl + RbCl + H2O at 348.15 K was done by using an isothermal evaporation method. The solubilities, densities, and refractive indices of the equilibrated solution were determined experimentally. On the basis of the measured data, the stereo phase diagram, the metastable phase diagram, the water content diagram, and the physicochemical properties versus composition diagrams were constructed. Results show that the quaternary system is of a complex type with the solid solution of potassium Chloride and Rubidium Chloride [(K, Rb)Cl] formed at 348.15 K. The metastable phase diagram consists of two invariant points, five univariant curves, and four crystallization fields corresponding to single salts potassium Chloride (KCl), Rubidium Chloride (RbCl), lithium Chloride monohydrate (LiCl·H2O), and a solid solution of potassium and Rubidium Chloride [(K, Rb)Cl]. Salt RbCl has the largest solubility among the coexisting salts and presents the smallest ...
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metastable phase equilibria for the quaternary system containing potassium magnesium Rubidium and Chloride at 323 15 k
Fluid Phase Equilibria, 2013Co-Authors: Dongbo Jiang, Ying ZengAbstract:Abstract By employing the method of isothermal evaporation, the metastable phase equilibria of the quaternary systems KCl + RbCl + MgCl 2 + H 2 O were researched at 323.15 K. In this paper, the solubilities and physicochemical properties, such as refractive indices and densities of the equilibrated solution, were determined. Through analysis of the experiments data, the metastable phase diagram, the water content diagram and physicochemical properties versus composition diagrams of the quaternary system were plotted. The study results indicated that in the metastable phase diagram, there were four invariant points (H 1 , H 2 , H 3 , H 4 ), nine univariant curves, and six crystallization fields. And the six crystallization fields were magnesium Chloride hexahydrate (MgCl 2 ·6H 2 O) and potassium Chloride (KCl) and Rubidium Chloride (RbCl) and a Rubidium and magnesium Chloride double salt named carnallite (RbCl·MgCl 2 ·6H 2 O) and a potassium and magnesium Chloride double salt named carnallite (KCl·MgCl 2 ·6H 2 O) and a solid solution of potassium and Rubidium Chloride [(K, Rb)Cl]. The solid solution [(K, Rb)Cl] had the largest crystallization field. This showed that only by using evaporation and crystallization methods at 323.15 K, was it difficult to separate potassium from Rubidium in Chloride solution. The physicochemical properties of the quaternary system change regularly with the changes of composition in aqueous solutions.
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solid liquid isothermal evaporation metastable phase equilibria in the aqueous quaternary system licl kcl rbcl h2o at 298 15 k
Journal of Chemical & Engineering Data, 2012Co-Authors: Ying Zeng, Jianyuan YangAbstract:The metastable phase equilibria in the aqueous quaternary system LiCl + KCl + RbCl + H2O were investigated at 298.15 K using an isothermal evaporation method. The solubilities and physicochemical properties such as the density and refractive index of the equilibrated solution were determined. On the basis of the experimental results, the stereo phase diagram, the projected phase diagram, the water content diagram, and the physicochemical properties versus composition diagrams were constructed. The projected phase diagram consists of two invariant points, five isothermal univariant curves, and four crystallization fields corresponding to single salts potassium Chloride (KCl), Rubidium Chloride (RbCl), lithium Chloride monohydrate (LiCl·H2O), and a solid solution of potassium and Rubidium Chloride [(K, Rb)Cl]. The two invariant points are cosaturated with three salts, which are LiCl·H2O + RbCl + (K, Rb)Cl and LiCl·H2O + KCl + (K, Rb)Cl, respectively. No double salt was formed. The crystallization region of ...
Alexander Apelblat - One of the best experts on this subject based on the ideXlab platform.
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effect of temperature on compressibility properties of 0 1 0 5 and 1 0 molal solutions of alkali metal halides part 1 aqueous solutions of sodium Chloride sodium bromide sodium iodide potassium Chloride potassium bromide potassium iodide Rubidium chl
Journal of Molecular Liquids, 2017Co-Authors: Alexander ApelblatAbstract:Abstract Sound velocities in aqueous 0.1 mol·kg − 1 , 0.5 mol·kg − 1 and 1.0 mol·kg − 1 solutions of NaCl, NaBr, NaI, KCl, KBr, KI, RbCl and RbI were measured at 1 K intervals from T = (278.15 to 353.15) K. Determined sound velocities and densities served to determine the isentropic and isothermal compressibility coefficients, the apparent molar compressibilities , the apparent molar volumes , the isochoric thermal pressure coefficients, cubic expansion coefficients, changes of heat capacities with volume and with pressure, and the hydration numbers. In addition were evaluated the ultrasonic relaxation times and corresponding thermodynamic functions of the activation of the viscous process. Determined parameters are qualitatively correlated with changes in the structure of water when alkali metal halides are dissolved in it.
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the vapour pressures of saturated aqueous solutions of sodium Chloride sodium bromide sodium nitrate sodium nitrite potassium iodate and Rubidium Chloride at temperatures from 227 k to 323 k
The Journal of Chemical Thermodynamics, 1998Co-Authors: Alexander Apelblat, Eli KorinAbstract:Abstract The vapour pressures of saturated aqueous solutions of NaCl, NaBr, NaNO3, NaNO2, KIO3, and RbCl were determined in the temperature rangeT=(278 to 323) K using an electronic hygrometer with an electrolyte sensor and compared with the literature data, which are available only for the first four salts. These vapour pressures serve to evaluate the water activities, osmotic coefficients, and molar enthalpies of vaporization and solution at saturation.
Yucheng Jiang - One of the best experts on this subject based on the ideXlab platform.
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liquid solid equilibrium density and refractive index for methanol sodium Chloride Rubidium Chloride water and ethanol sodium Chloride Rubidium Chloride water at temperatures of 288 298 and 308 k
Journal of Chemical & Engineering Data, 2009Co-Authors: Haiyan Guo, Quanguo Zhai, Yucheng JiangAbstract:In this paper, (liquid + solid) equilibria, densities, and refractive indices are reported for (CH3OH + NaCl + RbCl + H2O) and (C2H5OH + NaCl + RbCl + H2O) at T = (288.15, 298.15, and 308.15) K. The results show that the presence of either CH3OH or C2H5OH significantly reduces the solubility of NaCl and RbCl in aqueous solutions. The experimental solubility, density, and refractive index were correlated to empirical equations, which makes it possible to calculate these properties over the whole studied concentration. Calculated values are in good agreement with the experimental results.
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liquid liquid solid equilibrium for two quaternary systems potassium Chloride Rubidium Chloride 1 2 propanol water at 25 c
Chinese Journal of Chemistry, 2008Co-Authors: Haiyan Guo, Yucheng Jiang, H U Mancheng, Quanguo Zhai, L I Shuni, Meixia WangAbstract:The phase equilibria of two quaternary systems K+, Rb+//Cl-1/2-C3H7OH, H2O have been investigated at 25 °C. The liquid-solid phase equilibrium of ternary system KCl+RbCl+H2O has been determined. The liquid-liq- uid-solid phase equilibrium of the five different KCl/RbCl mass factions (from 1/0, 0.75/0.25, 0.5/0.5, 0.25/0.75 to 0/1) in the mixed solvent of 1/2-C3H7OH-H2O was investigated. The integrated phase diagrams were drawn for two quaternary systems and the salting effects of the 1/2-C3H7OH were discussed. The results of the fitting for liquid- liquid data by a five-coefficient equation and the tie line data by the Eisen-Joffe equation are reasonable.
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liquid liquid solid equilibrium of the quaternary systems sodium Chloride Rubidium Chloride propanols water at 25 c
Journal of Chemical & Engineering Data, 2008Co-Authors: Haiyan Guo, Yucheng Jiang, Meixia WangAbstract:The liquid–liquid–solid equilibria of the two quaternary systems sodium Chloride + Rubidium Chloride + (1-propanol or 2-propanol) + water were investigated at 25 °C. The binodal curves and tie lines together with the integrated phase diagrams for the two quaternary systems have been determined to investigate salting effects. The different equilibrium regions are discussed in detail. The results of the fitting for experimental tie line data by the Eisen−Joffe equation are reasonable.
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activity coefficients of Rubidium Chloride and cesium Chloride in methanol water mixtures and a comparative study of pitzer and pitzer simonson clegg models 298 15 k
Fluid Phase Equilibria, 2007Co-Authors: Ruifang Cui, Lihua Jin, Yucheng Jiang, Shuping XiaAbstract:Abstract Activity coefficients of Rubidium Chloride and cesium Chloride in methanol–water mixed solvent systems were determined by electromotive force (EMF) measurements at 298.15 K, in the range 0–40% (wt.%) methanol. For our work, the cells: Rb-ISE | RbCl ( m ), methanol ( Y ), water (1 − Y ) | Cl-ISE; Cs-ISE | CsCl ( m ), methanol ( Y ), water (1 − Y ) | Cl-ISE were used to obtain the emf data. The Rubidium and cesium ion-selective electrodes were prepared by ourselves, and they exhibited reasonably good Nernst response. Then the experimental data were calculated by both Pitzer and Pitzer–Simonson–Clegg models. We got the corresponding parameters of two models, the standard potentials and the activity coefficients of Rubidium Chloride and cesium Chloride. Moreover, the standard Gibbs free energies of transference of RbCl or CsCl from water to methanol–water mixtures had been discussed as well. After the comparative study, it was found that the Pitzer–Simonson–Clegg model was superior in this work.
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Solubilities, Densities and Refractive Indices of Rubidium Chloride or Cesium Chloride in Ethanol Aqueous Solutions at Different Temperatures
Chinese Journal of Chemistry, 2007Co-Authors: Wen-xia Zhao, Yucheng JiangAbstract:The data of solubilities, densities and refractive indices of Rubidium Chloride or cesium Chloride in the system C2H5OH-H2O 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-C2H5OH-H2O 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 °C. 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.
Qi Tan - One of the best experts on this subject based on the ideXlab platform.
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phase equilibria for the aqueous reciprocal quaternary system rb mg2 cl borate h2o at 348 k
Journal of Chemical & Engineering Data, 2014Co-Authors: Qinghong Yin, Qi Tan, Ying ZengAbstract:Phase equilibria for the reciprocal quaternary system containing Rubidium, magnesium, Chloride, and borate in aqueous solution at 348 K was investigated by isothermal dissolution method. The compositions, densities, and refractive indices of the solution at equilibrium were measured experimentally. The space phase diagram, the planar projection diagram, the water content diagram, and the diagrams of the physicochemical properties (densities and refractive indices) vs composition were constructed using the measured data. Results indicate that the quaternary system is a complex type along with the double salt Rubidium carnallite (RbCl·MgCl2·6H2O) formed at 348 K. The planar projection diagram consists of three invariant points, seven univariant curves and five crystallization zones corresponding to four single salts Rubidium pentaborate tetrahydrate (RbB5O6(OH)4·2H2O), hungchaoite (MgB4O5(OH)4·7H2O), Rubidium Chloride(RbCl), bischofite(MgCl2·6H2O), and a double salt of Rubidium carnallite (RbCl·MgCl2·6H2O)....
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solid liquid equilibrium in the aqueous system containing the Chlorides of lithium Rubidium and magnesium at 323k
Fluid Phase Equilibria, 2014Co-Authors: Dongbo Jiang, Qi Tan, Ying ZengAbstract:Abstract The densities, refractive indices and compositions of solutions of electrolyte mixtures in quaternary system LiCl + RbCl + MgCl 2 + H 2 O at 323 K were determined by isothermal evaporation method. The stereo phase diagram, the metastable phase diagram, the water content diagram, and the diagrams of the physicochemical properties depending on the composition were obtained using the measured data. The metastable phase diagram of this quaternary system contains three invariant points (H 1 , H 2 , and H 3 ), seven univariant curves, and five crystallization fields corresponding to single salts lithium Chloride monohydrate (LiCl·H 2 O), Rubidium Chloride (RbCl), magnesium Chloride hexahydrate (MgCl 2 ·6H 2 O), and two double salts: lithium carnallite (LiCl·MgCl 2 ·7H 2 O) and Rubidium carnallite (RbCl·MgCl 2 ·6H 2 O). The scope of areas of crystallization of salts is such that RbCl·MgCl 2 ·6H 2 O > RbCl > LiCl·H 2 O > MgCl 2 ·6H 2 O > LiCl·MgCl 2 ·7H 2 O. The physicochemical properties of the solutions, at equilibrium, change regularly with the change of the concentration of MgCl 2 .
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metastable phase equilibrium in the quaternary system licl kcl rbcl h2o at 348 15 k
Journal of Chemical & Engineering Data, 2013Co-Authors: Qinghong Yin, Ying Zeng, Qi TanAbstract:The metastable phase equilibrium of the quaternary system LiCl + KCl + RbCl + H2O at 348.15 K was done by using an isothermal evaporation method. The solubilities, densities, and refractive indices of the equilibrated solution were determined experimentally. On the basis of the measured data, the stereo phase diagram, the metastable phase diagram, the water content diagram, and the physicochemical properties versus composition diagrams were constructed. Results show that the quaternary system is of a complex type with the solid solution of potassium Chloride and Rubidium Chloride [(K, Rb)Cl] formed at 348.15 K. The metastable phase diagram consists of two invariant points, five univariant curves, and four crystallization fields corresponding to single salts potassium Chloride (KCl), Rubidium Chloride (RbCl), lithium Chloride monohydrate (LiCl·H2O), and a solid solution of potassium and Rubidium Chloride [(K, Rb)Cl]. Salt RbCl has the largest solubility among the coexisting salts and presents the smallest ...
Haiyan Guo - One of the best experts on this subject based on the ideXlab platform.
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liquid solid equilibrium density and refractive index for methanol sodium Chloride Rubidium Chloride water and ethanol sodium Chloride Rubidium Chloride water at temperatures of 288 298 and 308 k
Journal of Chemical & Engineering Data, 2009Co-Authors: Haiyan Guo, Quanguo Zhai, Yucheng JiangAbstract:In this paper, (liquid + solid) equilibria, densities, and refractive indices are reported for (CH3OH + NaCl + RbCl + H2O) and (C2H5OH + NaCl + RbCl + H2O) at T = (288.15, 298.15, and 308.15) K. The results show that the presence of either CH3OH or C2H5OH significantly reduces the solubility of NaCl and RbCl in aqueous solutions. The experimental solubility, density, and refractive index were correlated to empirical equations, which makes it possible to calculate these properties over the whole studied concentration. Calculated values are in good agreement with the experimental results.
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liquid liquid solid equilibrium for two quaternary systems potassium Chloride Rubidium Chloride 1 2 propanol water at 25 c
Chinese Journal of Chemistry, 2008Co-Authors: Haiyan Guo, Yucheng Jiang, H U Mancheng, Quanguo Zhai, L I Shuni, Meixia WangAbstract:The phase equilibria of two quaternary systems K+, Rb+//Cl-1/2-C3H7OH, H2O have been investigated at 25 °C. The liquid-solid phase equilibrium of ternary system KCl+RbCl+H2O has been determined. The liquid-liq- uid-solid phase equilibrium of the five different KCl/RbCl mass factions (from 1/0, 0.75/0.25, 0.5/0.5, 0.25/0.75 to 0/1) in the mixed solvent of 1/2-C3H7OH-H2O was investigated. The integrated phase diagrams were drawn for two quaternary systems and the salting effects of the 1/2-C3H7OH were discussed. The results of the fitting for liquid- liquid data by a five-coefficient equation and the tie line data by the Eisen-Joffe equation are reasonable.
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liquid liquid solid equilibrium of the quaternary systems sodium Chloride Rubidium Chloride propanols water at 25 c
Journal of Chemical & Engineering Data, 2008Co-Authors: Haiyan Guo, Yucheng Jiang, Meixia WangAbstract:The liquid–liquid–solid equilibria of the two quaternary systems sodium Chloride + Rubidium Chloride + (1-propanol or 2-propanol) + water were investigated at 25 °C. The binodal curves and tie lines together with the integrated phase diagrams for the two quaternary systems have been determined to investigate salting effects. The different equilibrium regions are discussed in detail. The results of the fitting for experimental tie line data by the Eisen−Joffe equation are reasonable.
