Volumetric properties for the ternary system (CaCl2-SrCl2-H2O) and binary sub-systems at temperatures from 278.15 K to 323.15 K

doi:10.1016/j.jct.2021.106690

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	Volumetric properties for the ternary system (CaCl2-SrCl2-H2O) and binary sub-systems at temperatures from 278.15 K to 323.15 K
	Ge, Haiwen; Wang, Min
刊名	JOURNAL OF CHEMICAL THERMODYNAMICS
	2021-11
卷号	166
ISSN号	0021-9614
DOI	10.1016/j.jct.2021.106690
英文摘要	Densities the ternary system (CaCl2-SrCl2-H2O) and its binary sub-systems (CaCl2-H2O and SrCl2-H2O) were elaborately measured with an Anton Paar Digital vibrating-tube densimeter at temperature intervals of 5 K from 278.15 K to 323.15 K. The coefficient of thermal expansion (alpha) and apparent mole volume (phi(v)) for the binary systems were obtained based on the experimental density results. Apparent mole volumes of CaCl2 and SrCl2 varied smoothly with solute molality and could be fitted using an extended RRM equation. Based on the PK method, the density for the ternary system was predicted by the density of the two binary sub-systems, and there is a good consistency between the results of predicted and experimental. On the basis of volumetric property data for the binary and ternary systems, the Pitzer single-salt parameters (beta((0)V)(MX), beta((1)V)(MX) and C-MX(V), MX = CaCl2 and SrCl2) and mixing ion-interaction parameters theta(V)(Ca,Sr), psi(V)(Ca,Sr,Cl)) were parameterized according to Pitzer ion-interaction theory of single salt electrolyte and mixture electrolytes, respectively. Volumetric property was analysed using the Pitzer model and the predicted values were comparable with experimental values. The simulation results indicate that the Pitzer model parameters can reliably represent the properties of the systems. The temperaturedependence equations and the temperature correlation coefficients for those parameters were also obtained. The volume properties of three systems can be quantitatively obtained according to the electrolyte parameterization model within the experimental temperature range. (C) 2021 Elsevier Ltd.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34585]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Ge, Haiwen,Wang, Min. Volumetric properties for the ternary system (CaCl2-SrCl2-H2O) and binary sub-systems at temperatures from 278.15 K to 323.15 K[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2021,166.
APA	Ge, Haiwen,&Wang, Min.(2021).Volumetric properties for the ternary system (CaCl2-SrCl2-H2O) and binary sub-systems at temperatures from 278.15 K to 323.15 K.JOURNAL OF CHEMICAL THERMODYNAMICS,166.
MLA	Ge, Haiwen,et al."Volumetric properties for the ternary system (CaCl2-SrCl2-H2O) and binary sub-systems at temperatures from 278.15 K to 323.15 K".JOURNAL OF CHEMICAL THERMODYNAMICS 166(2021).