Activity Coefficient Measurements in the Ternary System NaNO3-Cu(NO3)(2)-H2O at 298.15 K by the Cell Potential Method

doi:10.1021/acs.jced.0c00841

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	Activity Coefficient Measurements in the Ternary System NaNO3-Cu(NO3)(2)-H2O at 298.15 K by the Cell Potential Method
	Sang, Shi-Hua; Wei, Xue-Qi; Ma, Xu-Chun; Gao, Yun-Yun; Lei, Ning-Fei; Cui, Rui-Zhi
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2021-03-11
卷号	66 期号:3 页码:1255-1263
ISSN号	0021-9568
DOI	10.1021/acs.jced.0c00841
英文摘要	In this work, the activity coefficients of sodium nitrate in the ternary system NaNO3-Cu(NO3)(2)-H2O were experimentally determined at 298.15 K in the range of total ionic strength I = 0.01 - 1.00 mol.kg(-1) at different ionic strength fractions of Cu(NO3)(2) with y(b) = 0.20, 0.40, 0.60, and 0.80 from the cell potential method of the cell without liquid junction: Na-ISE vertical bar NaNO3 (m(1)), Cu(NO3)(2) (m(2))vertical bar NO3-ISE. The Na-ISE and NO3-ISE used in this work have good Nernst response, which indicates that the cell potential method can be used to measure the abovementioned systems with high accuracy. The Nernst equation is used to directly calculate the mean activity coefficients of NaNO3 in the mixed solution. The relationship diagram of the mean activity coefficients of NaNO3 in the ternary system NaNO3-Cu(NO3)(2)-H2O is drawn. The experimental data are analyzed with the Pitzer model to fit the corresponding mixed ion interaction parameters theta(Na,Cu) and psi(Na,Cu,NO3), which required Pitzer equations. The osmotic coefficients, mean activity coefficients of Cu(NO3)(2), water activity, and the excess Gibbs free energy of the mixture solution were also calculated.
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/34337]
专题	青海盐湖研究所_盐湖资源与化学实验室
推荐引用方式 GB/T 7714	Sang, Shi-Hua,Wei, Xue-Qi,Ma, Xu-Chun,et al. Activity Coefficient Measurements in the Ternary System NaNO3-Cu(NO3)(2)-H2O at 298.15 K by the Cell Potential Method[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2021,66(3):1255-1263.
APA	Sang, Shi-Hua,Wei, Xue-Qi,Ma, Xu-Chun,Gao, Yun-Yun,Lei, Ning-Fei,&Cui, Rui-Zhi.(2021).Activity Coefficient Measurements in the Ternary System NaNO3-Cu(NO3)(2)-H2O at 298.15 K by the Cell Potential Method.JOURNAL OF CHEMICAL AND ENGINEERING DATA,66(3),1255-1263.
MLA	Sang, Shi-Hua,et al."Activity Coefficient Measurements in the Ternary System NaNO3-Cu(NO3)(2)-H2O at 298.15 K by the Cell Potential Method".JOURNAL OF CHEMICAL AND ENGINEERING DATA 66.3(2021):1255-1263.