Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K

doi:10.1007/s10953-018-0837-6

	Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K
	Li, Hongxia 2; Guo, Lijiang 1; Li, Jianqiang 1
刊名	JOURNAL OF SOLUTION CHEMISTRY
	2019-03-01
卷号	48 期号:3 页码:367-378
关键词	Isopiestic method Water activity Solubility Magnesium chloride Rubidium chloride Pitzer model
ISSN号	0095-9782
DOI	10.1007/s10953-018-0837-6
英文摘要	The water activities of the MgCl2-RbCl-H2O ternary system and its sub-binary systems have been measured with the isopiestic method at 323.15K. The measured water activities for the MgCl2-H2O and RbCl-H2O sub-binary systems agree well with the results reported in literature. The measured equal water activity lines of the MgCl2-RbCl-H2O ternary system are not straight lines, which means the mixing behavior of the solutions do not obey Zdanovskii's rule. The solubility of the MgCl2-RbCl-H2O ternary system has been determined with the Flow-Cloud-Point method at 323.15K, and the measured results are roughly consistent with values reported in the literature. The Pitzer model was selected to correlate the water activity and solubility data measured in this work. The predicted water activities and solubility isotherm for the MgCl2-RbCl-H2O ternary system at 323.15K, with binary solution parameters only, both deviated from the experiment values. The ternary solution Pitzer model parameters were obtained by fitting the measured water activities in the ternary system. The water activities and solubility isotherms of the MgCl2-RbCl-H2O ternary system at 323.15K were calculated including both binary and ternary solution parameters. The calculated water activities are consistent with the experimental values. The calculated solubility isotherms are roughly consistent with experiment values, except they deviate somewhat in the RbCl crystallization region.
资助项目	National Key Research and Development Plan of China[2016YFC0700905] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA21070302] ; Natural Science Foundation of China[21868023] ; Natural Science Foundation of Inner Mongolia[2017BS0201]
WOS关键词	TERNARY-SYSTEM ; ACTIVITY-COEFFICIENTS ; ISOPIESTIC DETERMINATION ; OSMOTIC COEFFICIENTS ; PHASE-EQUILIBRIUM ; MODEL SIMULATION ; THERMODYNAMICS ; CSCI-MGCL2-H2O ; ELECTROLYTES ; RBCL
WOS研究方向	Chemistry
语种	英语
出版者	SPRINGER/PLENUM PUBLISHERS
WOS记录号	WOS:000462984100006
资助机构	National Key Research and Development Plan of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28310]
专题	中国科学院过程工程研究所
通讯作者	Guo, Lijiang
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.Baotou Teachers Coll, Baotou 014030, Peoples R China
推荐引用方式 GB/T 7714	Li, Hongxia,Guo, Lijiang,Li, Jianqiang. Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K[J]. JOURNAL OF SOLUTION CHEMISTRY,2019,48(3):367-378.
APA	Li, Hongxia,Guo, Lijiang,&Li, Jianqiang.(2019).Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K.JOURNAL OF SOLUTION CHEMISTRY,48(3),367-378.
MLA	Li, Hongxia,et al."Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K".JOURNAL OF SOLUTION CHEMISTRY 48.3(2019):367-378.