Solubility isotherms determination of the H3BO3 + CsCl + H2O system at T = (273.15, 298.15, 323.15, 348.15 and 363.15) K and thermodynamic modeling

Zhuang, Ziyu; Li, Dongdong; Yong-sheng, Fan; Gao, Dandan; Zeng, Dewen

doi:10.1016/j.jct.2022.106763

Cited by 3 publications

(1 citation statement)

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“…Te isothermal solution equilibrium method was applied to study the phase equilibrium of the system [16]. First, a saturated solution of one component was prepared in the conical bottle, into which diferent amounts of another component were added.…”

Section: Phase Equilibrium Experimentmentioning

confidence: 99%

Phase Equilibrium and Crystallization Process of the Ternary System KCl-(NH2)2CO-H2O at Different Temperatures

Chen

Shi

et al. 2023

Journal of Chemistry

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The phase equilibriums of the ternary system KCl-(NH2)2CO-H2O at 303.15 K, 323.15 K, 333.15 K, and 343.15 K were studied using the isothermal dissolution equilibrium method, in which the composition of equilibrium solid phase was determined by Schreinemaker’s wet residue method and X-ray diffraction (XRD) method. It was found that the ternary system is a simple cosaturated system, without the formation of neither double salt nor solid solution. Wilson and NRTL models were employed to correlate in the solubility data of the system at experimental temperatures. The maximum values of RAD and RMSD of the Wilson model were 2.18 × 10−2 and 0.83 and those of the NRTL model were 1.69 × 10−2 and 0.40, respectively. The two models were utilized to forecast solubility data at various temperatures, and the obtained outcomes were in line with the literature data. Based on the experimental solubility data at 343.15 K, the cooling crystallization process of the system was monitored online by focused beam reflectance measurement (FBRM) and particle video microscope (PVM). The crystal products were characterized by XRD, scanning electron microscope (SEM), and energy dispersive spectrometry (EDS). The results showed that the precipitation of (NH2)2CO occurred during the crystallization process, and this was followed by KCl. KCl was formed on the surface of (NH2)2CO crystal. The crystal was a simple mixture containing KCl and (NH2)2CO.

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Section: Phase Equilibrium Experimentmentioning

confidence: 99%