Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa
Wang, Yunsheng1,2; Chou, I-Ming3; Zheng, Mianping1,2; Hou, Xianhua1,2; I-Ming Chou
2017-08-01
发表期刊JOURNAL OF CHEMICAL THERMODYNAMICS
卷号111期号:2017页码:221-227
摘要Mirabilite and thenardite are common minerals found in marine evaporite deposits and also in saline lakes as precipitates. In this study, mirabilite-thenardite equilibria were determined along four humidity-buffer curves at 0.1 MPa and between 285.15 K and 305.15 K. Results for the reaction Na(2)SO(4 center dot)10H(2)O((s)) = Na2SO4(s) + 10H(2)O((g)), based on tight reversals along each humidity buffer, can be represented by ln K = 174.032-62815.11/T, where s is solid, g is gas, K is the equilibrium constant and T is temperature in K. Our data are in excellent agreement with several previous vapor-pressure measurements and are consistent with the solubility data reported in the literature. Thermodynamic analysis of these data yields 90.858 kJ.mol (1) for the standard Gibbs free energy of reaction, which is in good agreement with the values of 90.69 kJ.mol 1 and 90.34 kJ.mol (1) calculated from the thermodynamic data compiled and evaluated previously from two sources. (C) 2017 Elsevier Ltd.
文章类型Article
关键词Mirabilite Thenardite Humidity Buffer Thermodynamic Properties
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.jct.2017.03.028
收录类别SCI
语种英语
关键词[WOS]SODIUM-SULFATE DECAHYDRATE ; HUMIDITY-BUFFER TECHNIQUE ; HYDRATED CRYSTALS ; VAPOR-PRESSURE ; SALT ; HEPTAHYDRATE ; DISSOCIATION ; HEATS ; CRYSTALLIZATION ; STABILITY
WOS类目Thermodynamics ; Chemistry, Physical
WOS记录号WOS:000402482500024
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文献类型期刊论文
版本出版稿
条目标识符http://ir.idsse.ac.cn/handle/183446/1708
专题深海科学研究部_深海极端环境模拟研究实验室
通讯作者I-Ming Chou
作者单位1.CAGS, MLR Key Lab Saline Lake Resources & Environm, Inst Mineral Resources, Beijing 100037, Peoples R China
2.Chinese Acad Geol Sci, R&D Ctr Saline Lakes & Epithermal Deposits, Beijing 100037, Peoples R China
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China
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Wang, Yunsheng,Chou, I-Ming,Zheng, Mianping,et al. Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa[J]. JOURNAL OF CHEMICAL THERMODYNAMICS,2017,111(2017):221-227.
APA Wang, Yunsheng,Chou, I-Ming,Zheng, Mianping,Hou, Xianhua,&I-Ming Chou.(2017).Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa.JOURNAL OF CHEMICAL THERMODYNAMICS,111(2017),221-227.
MLA Wang, Yunsheng,et al."Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa".JOURNAL OF CHEMICAL THERMODYNAMICS 111.2017(2017):221-227.
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