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

被引：9

作者：

Han, Haijun ^{[1
,2
]}

Guo, Lijiang ^{[2
]}

Li, Dongdong ^{[2
]}

Dong, Ouyang ^{[2
]}

Yao, Yan ^{[2
]}

Zhang, Ning ^{[1
]}

Zeng, Dewen ^{[1
]}

机构：

[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

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2015年 / 60卷 / 08期

关键词：

PITZER MODEL REPRESENTATION; ION-INTERACTION MODEL; ACTIVITY-COEFFICIENTS; OSMOTIC COEFFICIENTS; THERMODYNAMIC PROPERTIES; VAPOR-PRESSURES; MIXTURES; MULTICOMPONENT; CHLORIDE;

D O I：

10.1021/acs.jced.5b00155

中图分类号：

O414.1 [热力学];

学科分类号：

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.

引用

页码：2285 / 2290

页数：6

共 50 条

[1] Isopiestic Measurements of Water Activity for the NaCl-KCl-MgCl2-H2O Systems at 323.15 K
Han, Haijun
Li, Dongdong
Guo, Lijiang
Yao, Yan
Yang, Haitang
Zeng, Dewen
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2015, 60 (04) : 1139 - 1145
[2] Isopiestic Determination and Simulation of Water Activity in the LiCl-KCl-H2O Ternary System at 323.15 K
Han, H. J.
Ma, J. J.
Xing, K. Q.
Shao, D. X.
Zhong, S. K.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2022, 67 (SUPPL 1) : S78 - S84
[3] Isopiestic Measurements of Water Activity for the Li2SO4-MgSO4-H2O System at 323.15 and 373.15 K
Yang, Haitang
Zeng, Dewen
Wang, Qingwei
Chen, Yifeng
Voigt, Wolfgang
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2016, 61 (09) : 3157 - 3162
[4] Isopiestic measurements of water activities and thermodynamic modeling for CuCl2-MCl2-H2O (M = Mg, Ca) ternary system at t=298.15 K
Guo, Lijiang
Zhou, Quanbao
Zeng, Dewen
FLUID PHASE EQUILIBRIA, 2021, 535
[5] Isopiestic determination of activity coefficients of LiCl and CaCl2 in LiCl-CaCl2-H2O system at 298.15K
Long, GM
Yao, Y
Wang, FQ
Wang, RL
ACTA PHYSICO-CHIMICA SINICA, 1999, 15 (10) : 956 - 960
[6] Water Activity and Phase Equilibria Measurements and Model Simulation for the KCl-SrCl2-H2O System at 323.15 K
Han, Haijun
Guo, Lijiang
Li, Dongdong
Yao, Yan
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2017, 62 (11) : 3753 - 3757
[7] Phase behavior of tetramethylurea plus MCl (M = Na, K, Rb, Cs) + H2O systems at 288.2, 298.2 and 308.2 K
Cao, Xiaoyue
Chang, Yahui
Li, Shuni
Zhai, Quanguo
Jiang, Yucheng
Hu, Mancheng
JOURNAL OF CHEMICAL THERMODYNAMICS, 2020, 144 (144)
[8] Water Activity and Solubility of the System MgCl2-RbCl-H2O at 323.15K
Li, Hongxia
Guo, Lijiang
Li, Jianqiang
JOURNAL OF SOLUTION CHEMISTRY, 2019, 48 (03) : 367 - 378
[9] Isopiestic measurements of thermodynamic properties for the aqueous system LiBr-CaBr2-H2O at 373.15 k
Meng, Lingzong
Gruszkiewicz, Miroslaw S.
Deng, Tianlong
Guo, Yafei
Li, Dan
JOURNAL OF CHEMICAL THERMODYNAMICS, 2019, 129 : 83 - 91
[10] Isopiestic investigation of the ternary system NaBr + NaCl + H2O at 298.15 K
Salamat-Ahangari, Rahman
JOURNAL OF MOLECULAR LIQUIDS, 2016, 219 : 1000 - 1005

← 1 2 3 4 5 →