Water Activity Measurements by the Isopiestic Method for the MCl-CaCl2-H2O (M = Na, K) Systems at 323.15 K

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	Water Activity Measurements by the Isopiestic Method for the MCl-CaCl2-H2O (M = Na, K) Systems at 323.15 K
	Han, Haijun 1,2; Guo, Lijiang 2; Li, Dongdong2 ; Dong, Ouyang2 ; Yao, Yan 2; Zhang, Ning 1; Zeng, Dewen 1
	2015-08-01
发表期刊	JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷号	60 期号:8 页码:2285-2290
摘要	In this work, the water activities of the NaCl-CaCl2-H2O and KCl-CaCl2-H2O ternary systems and of their sub-binary systems NaCl-H2O and KCl-H2O were measured using an isopiestic method at 323.15 K The isopiestic composition line for the NaClCaCl2-H2O system was found to obey the Zdanovskii rule very well, whereas the KCl-CaCl2-H2O system deviated slightly. The addition of NaCl to an aqueous solution of CaCl2 decreased its water activity for all CaCl2 molalities. However, KCl was found to decrease and increase the water activity at low and high CaCl2 molality, respectively. The turning point appears at 8.0 mol.kg(-1) CaCl2 solution. The Pitzer-Simonson-Clegg (PSC) model was applied to represent the water activity of the two ternary systems, and the calculated results are discussed.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6150
专题	青海盐湖研究所知识仓储盐湖资源与化学实验室
作者单位	1.Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Han, Haijun,Guo, Lijiang,Li, Dongdong,et al. Water Activity Measurements by the Isopiestic Method for the MCl-CaCl2-H2O (M = Na, K) Systems at 323.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2015,60(8):2285-2290.
APA	Han, Haijun.,Guo, Lijiang.,Li, Dongdong.,Dong, Ouyang.,Yao, Yan.,...&Zeng, Dewen.(2015).Water Activity Measurements by the Isopiestic Method for the MCl-CaCl2-H2O (M = Na, K) Systems at 323.15 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,60(8),2285-2290.
MLA	Han, Haijun,et al."Water Activity Measurements by the Isopiestic Method for the MCl-CaCl2-H2O (M = Na, K) Systems at 323.15 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 60.8(2015):2285-2290.