Solubility of RbCl and CsCl in pure water at subzero temperatures, heat capacity of RbCl(aq) and CsCl(aq) at T = 298.15 K, and thermodynamic modeling of RbCl + H 2 O and CsCl + H 2 O systems

Determination and Correlation of Solubility and Thermodynamic Properties of trans-Cinnamyl Alcohol in Pure and Binary Solvents from 253.15 K to 293.15 K

“…The solubility of cinnamyl alcohol in 11 pure solvents (methanol, ethanol, n -propanol, isopropyl alcohol, n -butyl alcohol, isobutyl alcohol, sec -butyl alcohol, acetone, methyl acetate, ethyl acetate, and n -hexane) and two kinds of binary solvent mixtures ( n -propanol (1) + n -hexane (2), n -butyl alcohol (1) + n -hexane (2) were measured by a gravimetric analysis method at temperatures ranging from 253.15 K to 293.15 K under atmospheric pressure …”

“…The solubility of cinnamyl alcohol in 11 pure solvents (methanol, ethanol, n-propanol, isopropyl alcohol, n-butyl alcohol, isobutyl alcohol, sec-butyl alcohol, acetone, methyl acetate, ethyl acetate, and n-hexane) and two kinds of binary solvent mixtures (n-propanol (1) + n-hexane (2), n-butyl alcohol (1) + n-hexane (2) were measured by a gravimetric analysis method at temperatures ranging from 253.15 K to 293.15 K under atmospheric pressure. 11 In a typical experiment, an initial amount of solid cinnamyl alcohol (approximately 4 g, with the remainder being the applied solvents) was added into a glass tube (type, B2702-A15 mL-20EA, Shanghai Aladdin Bio-Chem Technology Co., LTD) containing 4 mL of either single or binary solvent. The mixtures were kept at a predetermined temperature controlled by a refrigeration machine (CF41, Julabo Technology (Beijing) Co. LTD) and were magnetically stirred (2000 rpm) for 10 h until solid−liquid equilibrium was achieved.…”

Phase Diagram of the NaCl + RbCl + H2O System

“…In the ternary NaCl + RbCl + H 2 O system, solid phases are all inherited from its sub-binary systems NaCl + H 2 O and RbCl + H 2 O and there is no new compound found. Hence, the temperature-dependent PSC equation parameters for binary system NaCl + H 2 O and RbCl + H 2 O and standard Gibbs energy of all solid phases can be taken from the previous study. , …”

“…In this study, the solubility isotherms of the ternary NaCl + RbCl + H 2 O system were determined carefully at T = (298.15 and 273.15) K. Extending our previous study, − a temperature-dependent thermodynamic model for the ternary NaCl + RbCl + H 2 O system was developed over wide temperature and concentration ranges based on a Pitzer–Simonson–Clegg (PSC) activity model − by adding a temperature independent ternary mixing parameter fitted from the solubility data at 298.15 K. To validate the model, the predicted solubility were compared with those given in the literature and in the present study at other temperatures. From the model, the phase diagram of the ternary NaCl + RbCl + H 2 O system over the temperature range from the lowest eutectic point to 373.15 K was constructed.…”

Stable Phase Equilibrium of the Quaternary System Li2SO4 + Cs2SO4 + MgSO4 + H2O at 298.2 K

“…In recent years, the elements lithium (Li), cesium (Cs), and their compounds have been more and more widely used in the industrial fields, such as new energy, food processing, and pharmaceutical intermedia, etc . Brine is the main resource of rare metal lithium and cesium, as in the Qaidam Basin, and more than 33 salt lakes abundant with lithium and cesium have been found. , In order to well exploit the rare metal resource in the brine, the studies on the thermodynamics properties including dissolution and precipitation behavior of the rare metal are indispensable.…”