Isopiestic studies on thermodynamic properties for LiCl-Li2B4O7-H2Osystem at 298.15 K

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	Isopiestic studies on thermodynamic properties for LiCl-Li2B4O7-H2Osystem at 298.15 K
	Yang, JM; Yao, Y; Zhang, AY; Song, PS
	2006
发表期刊	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN	0251-0790
卷号	27 期号:4 页码:735-738
摘要	The isopiestic molalities and the water activities were measured at 298.15 K for the LiCi-Li2B4O7-H2O system by isopiestic method, and the vapor pressures and the osmotic coefficients were obtained from the measurements. The experimental data were represented by different forms of the ion interaction model based on the primary Pitzer model of osmotic coefficient. The Pitzer ion interaction parameters were, evaluated from recent measurements by using multiple regression and iterative method. The activity coefficients of LiCl and Li2B4O7 for the system LiCl-Li2B4O7-H2O were calculated by the ion interaction model parameterized at low concentrations. The data of osmotic coefficients measured are in reasonable agreements with those calculated by using the model. These studies are useful to improve the thermodynamic model for salt lake brine systems containing lithium and borates. The isopiestic molalities and the water activities were measured at 298.15 K for the LiCi-Li2B4O7-H2O system by isopiestic method, and the vapor pressures and the osmotic coefficients were obtained from the measurements. The experimental data were represented by different forms of the ion interaction model based on the primary Pitzer model of osmotic coefficient. The Pitzer ion interaction parameters were, evaluated from recent measurements by using multiple regression and iterative method. The activity coefficients of LiCl and Li2B4O7 for the system LiCl-Li2B4O7-H2O were calculated by the ion interaction model parameterized at low concentrations. The data of osmotic coefficients measured are in reasonable agreements with those calculated by using the model. These studies are useful to improve the thermodynamic model for salt lake brine systems containing lithium and borates.
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2310
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Yang, JM,Yao, Y,Zhang, AY,et al. Isopiestic studies on thermodynamic properties for LiCl-Li2B4O7-H2Osystem at 298.15 K[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2006,27(4):735-738.
APA	Yang, JM,Yao, Y,Zhang, AY,&Song, PS.(2006).Isopiestic studies on thermodynamic properties for LiCl-Li2B4O7-H2Osystem at 298.15 K.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,27(4),735-738.
MLA	Yang, JM,et al."Isopiestic studies on thermodynamic properties for LiCl-Li2B4O7-H2Osystem at 298.15 K".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 27.4(2006):735-738.