Water Activity, Solubility Determination, and Model Simulation of the CaCl2-SrCl2-H2O Ternary System at 323.15 K

被引：12

作者：

Han, Haijun ^{[1
,2
]}

Ji, Xiang ^{[3
]}

Ma, Junjie ^{[1
]}

Xu, Zhifeng ^{[1
]}

Guo, Lijiang ^{[2
]}

Li, Dongdong ^{[2
]}

Yao, Yan ^{[2
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Peoples R China

[2] Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China

[3] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2018年 / 63卷 / 05期

基金：

中国国家自然科学基金;

关键词：

ISOPIESTIC MEASUREMENT; PHASE-EQUILIBRIA; THERMODYNAMICS; KCL-SRCL2-H2O;

D O I：

10.1021/acs.jced.8b00003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Water activities for the CaCl2-SrCl2-H2O ternary system and its sub-binary system were elaborately determined using an isopiestic vapor-pressure method at 323.15 K. The solubility of the titled ternary system at 323.15 K was also determined by the isothermal equilibrium method. The Pitzer-Simonson-Clegg (PSC) model was used for correlating the determined water activity and solubility data, simulating the thermodynamic properties, and predicting the solubility isotherm of the titled system. The reliability of the determined solubility results in this work was evaluated by comparing with the solubility isotherms calculated with the PSC model. The model simulation results showed that the thermodynamic properties and solubility can be predicted with binary parameters only. The experiment and simulation results showed that the equilibrium solid phase in the CaCl2-SrCl2-H2O ternary system are pure salts, and no solid solution was found at 323.15 K.

引用

页码：1636 / 1641

页数：6

共 23 条

[1] EQUILIBRIA IN AQUEOUS SYSTEMS CONTAINING SR2+, K+, NA+ AND CL [J].

ASSARSSON, GO .

JOURNAL OF PHYSICAL CHEMISTRY, 1953, 57 (02) :207-210

[2] EQUILIBRIA BETWEEN 18-DEGREES AND 114-DEGREES IN THE AQUEOUS TERNARY SYSTEM CONTAINING CA2+, SR2+ AND CL- [J].

ASSARSSON, GO ;

BALDER, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1953, 57 (07) :717-722

[3] EQUILIBRIA IN THE AQUEOUS SYSTEMS CONTAINING CA-2+, SR-2+, K+, NA+ AND CL - BETWEEN 18-DEGREES AND 114-DEGREES [J].

ASSARSSON, GO ;

BALDER, A .

JOURNAL OF PHYSICAL CHEMISTRY, 1954, 58 (03) :253-255

[4]

Bi YJ, 2011, CHINESE J INORG CHEM, V27, P1765

[5] Phase change materials in the ternary system NH4Cl + CaCl2 + H2O [J].

Dong, Ouyang ;

Zeng, Dewen ;

Zhou, Hongyan ;

Han, Haijun ;

Yin, Xia ;

Du, Yong .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2011, 35 (03) :269-275

[6]

FILIPPOV VK, 1977, ZH NEORG KHIM+, V22, P1689

[7]

FILIPPOV VK, 1990, ZH OBSHCH KHIM+, V60, P492

[8] Vapor pressures and isopiestic molalities of concentrated CaCl2(aq), CaBr2(aq), and NaCl(aq) to T=523 K [J].

Gruszkiewicz, MS ;

Simonson, JM .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2005, 37 (09) :906-930

[9] Isopiestic measurement and solubility evaluation of the ternary system (CaCl2 + SrCl2 + H2O) at T=298.15 K [J].

Guo, Lijiang ;

Zeng, Dewen ;

Yao, Yan ;

Han, Haijun .

JOURNAL OF CHEMICAL THERMODYNAMICS, 2013, 63 :60-66

[10] Isopiestic Measurement and Solubility Evaluation of the Ternary System LiCl-SrCl2-H2O at 298.15 K [J].

Guo, Lijiang ;

Sun, Bai ;

Zeng, Dewen ;

Yao, Yan ;

Han, Haijun .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2012, 57 (03) :817-827

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