On the Tributylphosphate-Based Super-Concentrated HCl System

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	On the Tributylphosphate-Based Super-Concentrated HCl System
其他题名	On the Tributylphosphate-Based Super-Concentrated HCl System
	Guo Lin 1; Huang Kun 3; Guo Ran 2; He Anqi 2; Weng Shifu 2; Yang Zhanlan 2; Zhao Ying 3; Xia Jinming 4; Xu Yizhuang 2; Kang Tingguo 1; Wu Jinguang 2
	2015
发表期刊	SPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN	1000-0593
卷号	35 期号:8 页码:2241-2245
摘要	We reported a new super-concentrated hydrochloric acid system prepared by using tri-n-butyl phosphate (TBP)-constructed reversed micelles at ambient temperature and pressure. According to the titration result, the molar ratio of H+ to H2O (denoted as n(H)+/nH(2)O) in the super-concentrated HCl range from 0. 50 to 1. 50 which are higher than that in saturated aqueous HCl bulk solution (0. 28). Significant a moment of hydrochloric acid is confined in W/O reversed micelles. Therefore, the behavior and status of HCl are different from those of conventional bluk solution. FTIR spectroscopic results demonstrate that a significant amount of HCl remains in the molecular form rather than being ionized into H+ and Cl-. Thus, super-concentrated HCl provides an extraordinary chemical environment which may have significant influence on certain substances. We found that the color of the solution is reddish brown when copper ion is dissolved in super-concentrated HCl, while the color of the saturated HCl aqueous solution (37 Wt%) containing copper ion is green. That is to say, the copper ions exist in a special state under the unique chemical environment of super-concentrated HCl. UV-Vis-NIR spectra indicate that both d-d transition band and charge transfer transition band of copper ions in super-concentrated HCl solution underwent significant variations. In addition, copper ions also have obvious influence on the hydrogen bond network among HCl in the super-concentrated HCl solution. Remarkable variation is introduced in the H-Cl stretching band in FTIR spectra.
关键词	ACID Tributyl phosphate (TBP) Super-concentrated HCl n(H)+/nH(2)O Copper ion
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5481746
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/147839
专题	中国科学院金属研究所
作者单位	1.辽宁大学 2.北京大学 3.中国科学院 4.中国科学院金属研究所
推荐引用方式 GB/T 7714	Guo Lin,Huang Kun,Guo Ran,et al. On the Tributylphosphate-Based Super-Concentrated HCl System[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2015,35(8):2241-2245.
APA	Guo Lin.,Huang Kun.,Guo Ran.,He Anqi.,Weng Shifu.,...&Wu Jinguang.(2015).On the Tributylphosphate-Based Super-Concentrated HCl System.SPECTROSCOPY AND SPECTRAL ANALYSIS,35(8),2241-2245.
MLA	Guo Lin,et al."On the Tributylphosphate-Based Super-Concentrated HCl System".SPECTROSCOPY AND SPECTRAL ANALYSIS 35.8(2015):2241-2245.