Measurements of Vapor Pressures of Aqueous Solutions in the NaCl-KCl-H2O System from 493.15 to 693.25 K in a Fused Silica Capillary High-Pressure Optical Cell

doi:10.1021/acs.jced.9b00993

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

	Measurements of Vapor Pressures of Aqueous Solutions in the NaCl-KCl-H2O System from 493.15 to 693.25 K in a Fused Silica Capillary High-Pressure Optical Cell
	Chen, Ying; Chou, I-Ming
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2020-02-01
卷号	65 期号:2 页码:766-776
ISSN号	0021-9568
DOI	10.1021/acs.jced.9b00993
英文摘要	Vapor pressure data of geologically and industrially important aqueous solutions containing two or more electrolytes are lacking, especially at high temperatures (>373 K). In this study, a method was developed to measure the vapor pressures of aqueous solutions containing both NaC1 and KC1, with molalities of (1) 0.5 mol/kg NaC1 and 0.5 mol/kg KCl, (2) 1 mol/kg NaCl and 1 mol/kg KCl, and (3) 2 mol/kg NaCl and 2 mol/kg KCl, at temperatures from 493.15 to 693.25 K. This method was verified by comparing our measured vapor pressures of pure H2O with the previously well -established data and was further tested by comparing our measured vapor pressures of aqueous solutions containing either NaCl or KCl at 1 and 3 mol/kg concentrations with previous data and models. This study not only provided the vapor pressure data for the ternary NaCl-KCl-H2O system at elevated temperatures for the first time but also established a reliable experimental method for vapor pressure measurements of multicomponent aqueous solutions commonly involved in various geological and industrial processes at elevated temperatures.
资助项目	National Sciences Foundation of China[41573052] ; Knowledge Innovation Program of the Chinese Academy of Sciences[SIDSSE-201302] ; Hadal-trench Research Program of the Chinese Academy of Sciences[XDB06060100] ; Key Frontier Science Program of the Chinese Academy of Sciences[QYZDY-SSW-DQC008]
WOS关键词	THERMODYNAMIC PROPERTIES ; ELECTROLYTE-SOLUTIONS ; FLUID INCLUSIONS ; SODIUM-CHLORIDE ; ACTIVITY-COEFFICIENTS ; ANALYTIC CORRELATION ; NONAQUEOUS SOLUTIONS ; LIQUID-EQUILIBRIA ; NACL-KCL ; TEMPERATURES
WOS研究方向	Thermodynamics ; Chemistry ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000514221900046
资助机构	National Sciences Foundation of China ; Knowledge Innovation Program of the Chinese Academy of Sciences ; Hadal-trench Research Program of the Chinese Academy of Sciences ; Key Frontier Science Program of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/7509]
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	Chou, I-Ming
作者单位	Chinese Acad Sci, CAS Key Lab Expt Study Deep Sea Extreme Condit, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ying,Chou, I-Ming. Measurements of Vapor Pressures of Aqueous Solutions in the NaCl-KCl-H2O System from 493.15 to 693.25 K in a Fused Silica Capillary High-Pressure Optical Cell[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2020,65(2):766-776.
APA	Chen, Ying,&Chou, I-Ming.(2020).Measurements of Vapor Pressures of Aqueous Solutions in the NaCl-KCl-H2O System from 493.15 to 693.25 K in a Fused Silica Capillary High-Pressure Optical Cell.JOURNAL OF CHEMICAL AND ENGINEERING DATA,65(2),766-776.
MLA	Chen, Ying,et al."Measurements of Vapor Pressures of Aqueous Solutions in the NaCl-KCl-H2O System from 493.15 to 693.25 K in a Fused Silica Capillary High-Pressure Optical Cell".JOURNAL OF CHEMICAL AND ENGINEERING DATA 65.2(2020):766-776.