Water Activity and Solubility Measurements and Pitzer Model Simulation of the MgCl2-RbCl-H2O Ternary System at 298.15 K
Guo, Lijiang1,2; Wang, Yaxiao3; Tu, Lanying3; Li, Jianqiang1
2017-10-01
发表期刊JOURNAL OF SOLUTION CHEMISTRY
ISSN0095-9782
卷号46期号:9-10页码:1767-1777
摘要

Water activities for the MgCl2-RbCl-H2O ternary system and its sub-binary MgCl2-H2O and RbCl-H2O systems at 298.15 K have been measured using the isopiestic method. The measured results for the binary systems agree well with literature data. The measured equal water activity lines for the MgCl2-RbCl-H2O ternary system deviate from Zdanovskii's rule. The solubilities for the MgCl2-RbCl-H2O ternary system also have been measured using a isothermal visual first/last crystal method, and the results are consistent with one reported set of solubility data. Pitzer's model was selected to correlate the measured water activity and solubility data and the parameters reported in the literature are re-examined by comparing the model-calculated equal water activity lines and solubilities with experimental values measured in this work. New and reasonable parameters are obtained by fitting the water activity and solubility data measured in this work and those reported in the literature. The water activities and solubilities were simulated with the new parameters and the results show that the Pitzer model can successfully represent the thermodynamic properties and be used to calculate the solubility isotherms.

关键词Water Activity Solubility Magnesium Chloride Rubidium Chloride Pitzer Model
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s10953-017-0618-7
收录类别SCI
语种英语
关键词[WOS]Activity-coefficients ; Isopiestic Determination ; Osmotic Coefficients ; Aqueous-solutions ; Thermodynamics ; Electrolytes ; 25-degrees-c ; Rbcl
WOS研究方向Chemistry
WOS类目Chemistry, Physical
项目资助者National Natural Science Foundation of China(21303239 ; U1407137 ; U1507101)
WOS记录号WOS:000413118800005
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23300
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China
3.Qinghai Univ, Coll Chem Engn, Xining 810016, Qinghai, Peoples R China
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Guo, Lijiang,Wang, Yaxiao,Tu, Lanying,et al. Water Activity and Solubility Measurements and Pitzer Model Simulation of the MgCl2-RbCl-H2O Ternary System at 298.15 K[J]. JOURNAL OF SOLUTION CHEMISTRY,2017,46(9-10):1767-1777.
APA Guo, Lijiang,Wang, Yaxiao,Tu, Lanying,&Li, Jianqiang.(2017).Water Activity and Solubility Measurements and Pitzer Model Simulation of the MgCl2-RbCl-H2O Ternary System at 298.15 K.JOURNAL OF SOLUTION CHEMISTRY,46(9-10),1767-1777.
MLA Guo, Lijiang,et al."Water Activity and Solubility Measurements and Pitzer Model Simulation of the MgCl2-RbCl-H2O Ternary System at 298.15 K".JOURNAL OF SOLUTION CHEMISTRY 46.9-10(2017):1767-1777.
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