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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, Haijun1,2; Guo, Lijiang2; Li, Dongdong2; Dong, Ouyang2; Yao, Yan2; Zhang, Ning1; Zeng, Dewen1
2015-08-01
发表期刊JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷号60期号:8页码:2285-2290
文章类型Article
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.
WOS标题词Science & Technology ; Physical Sciences ; Technology
关键词[WOS]ION-INTERACTION MODEL ; AQUEOUS CALCIUM-CHLORIDE ; THERMODYNAMIC PROPERTIES ; ACTIVITY-COEFFICIENTS ; OSMOTIC COEFFICIENTS ; VAPOR-PRESSURES ; T=298.15 K ; REPRESENTATION ; MIXTURES ; MULTICOMPONENT
收录类别SCI
语种英语
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
WOS记录号WOS:000359683300014
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
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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.
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