Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa

doi:10.1016/j.jct.2017.03.028

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海极端环境模拟研究实验室

	Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa
	I-Ming Chou; Hou, Xianhua 1,2; Wang, Yunsheng 1,2; Chou, I-Ming3 ; Zheng, Mianping 1,2
刊名	JOURNAL OF CHEMICAL THERMODYNAMICS
	2017-08-01
卷号	111 期号:2017 页码:221-227
关键词	Mirabilite Thenardite Humidity Buffer Thermodynamic Properties
DOI	10.1016/j.jct.2017.03.028
文献子类	Article
英文摘要	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.
WOS关键词	SODIUM-SULFATE DECAHYDRATE ; HUMIDITY-BUFFER TECHNIQUE ; HYDRATED CRYSTALS ; VAPOR-PRESSURE ; SALT ; HEPTAHYDRATE ; DISSOCIATION ; HEATS ; CRYSTALLIZATION ; STABILITY
语种	英语
WOS记录号	WOS:000402482500024
内容类型	期刊论文
版本	出版稿
源URL	[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.Chinese Acad Geol Sci, R&D Ctr Saline Lakes & Epithermal Deposits, Beijing 100037, Peoples R China 2.CAGS, MLR Key Lab Saline Lake Resources & Environm, Inst Mineral Resources, Beijing 100037, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Hainan, Peoples R China
推荐引用方式 GB/T 7714	I-Ming Chou,Hou, Xianhua,Wang, Yunsheng,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	I-Ming Chou,Hou, Xianhua,Wang, Yunsheng,Chou, I-Ming,&Zheng, Mianping.(2017).Acquisition and evaluation of thermodynamic data for mirabilite-thenardite equilibria at 0.1 MPa.JOURNAL OF CHEMICAL THERMODYNAMICS,111(2017),221-227.
MLA	I-Ming Chou,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.