Studies on thermochemical properties of ionic liquid based on transition metal ions - System BMIC/ZnCl2

ISL OpenIR > 青海盐湖研究所知识仓储

	Studies on thermochemical properties of ionic liquid based on transition metal ions - System BMIC/ZnCl2
	Yang Jia-Zhen ; Li Ji-Guang ; Fang Da-Wei ; Zhang Qing-Guo ; Feng Rong-Kai ; Tao Chuang
	2007-03-01
发表期刊	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
卷号	28 期号:3 页码:492-495
关键词	Isoperibol Calorimeter Solution Enthalpy Pitzer's Equationy Ionic Liquid Hydration Enthalpy
摘要	A colorless and transparent ionic liquid BMIC/ZnCl2 was prepared by mixing 1-butyl 3-methylimidazolium chloride(BMIC) and ZnCl2 with a molar ratio of 1:1 at 363.15 K under stirring in a glove box filled with dry argon. The molar dissolution enthalpies, Delta H-s(m), of BMIC/ZnCl2 in water with various molalities were determined by a solution-reaction isoperibol calorimeter at 298.15 K. In terms of Pitzer electrolyte solution theory, the molar solution enthalpy of BMIC/ZnCl2 at infinite dilution, Delta H-s(m)0, and Pitzer parameters: beta((0)L)(Mx),beta((1)L)(MX) and C-MX(phi L) were obtained, respectively. According to Lecocq's viewpoint, ionic liquid BMIC/ZnCl2 with a molar ratio of 1:1 is a single compound BMIZnCl3. In terms of Glasser's theory and thermodynamic cycle, the standard molar hydration enthalpy of ionic liquid BMIZnCl3, (Delta H-+(0) + Delta H--)(0) = -497 kJ/mol, was calculated. The standard molar enthalpies of hydration of individual ions can be obtained from those of electrolytes, provided that the value of one ion is known. The standard molar enthalpies of hydration of cation BMI+ were estimated Delta H-+(0) (BMI+) = -225 kJ/mol in literature so that the standard molar enthalpies of hydration of ZnCl3- was obtained, that is, Delta H--(0) (ZnCl3-) = -272 kJ/mol.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5812
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
作者单位	1.Liaoning Univ, Coll Chem, Shenyang 110036, Peoples R China 2.Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang Jia-Zhen,Li Ji-Guang,Fang Da-Wei,et al. Studies on thermochemical properties of ionic liquid based on transition metal ions - System BMIC/ZnCl2[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2007,28(3):492-495.
APA	Yang Jia-Zhen,Li Ji-Guang,Fang Da-Wei,Zhang Qing-Guo,Feng Rong-Kai,&Tao Chuang.(2007).Studies on thermochemical properties of ionic liquid based on transition metal ions - System BMIC/ZnCl2.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,28(3),492-495.
MLA	Yang Jia-Zhen,et al."Studies on thermochemical properties of ionic liquid based on transition metal ions - System BMIC/ZnCl2".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 28.3(2007):492-495.