Effects of existence form and concentrations of NiCl2•6H2O and CrCl3•6H2O on conductivity of ChCl-EG deep eutectic solvent

ZHU Xiaolin; XU Cunying; TANG Jie; HUA Yixin; ZHANG Qibo; LIU Hai; WANG Xiang; HUANG Mengting

doi:10.11949/0438-1157.20190060

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Effects of existence form and concentrations of NiCl₂•6H₂O and CrCl₃•6H₂O on conductivity of ChCl-EG deep eutectic solvent

Material science and engineering\, nanotechnology | 更新时间：2026-07-24

- Effects of existence form and concentrations of NiCl₂•6H₂O and CrCl₃•6H₂O on conductivity of ChCl-EG deep eutectic solvent
- CIESC Journal Vol. 70, Issue 7, Pages: 2786-2794(2019)
- 作者机构：
  
  1.昆明理工大学冶金与能源工程学院，云南昆明 650093
  2.复杂有色金属资源清洁利用国家重点实验室，云南昆明 650093
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190060
  CLC： TG 144
- Received：21 January 2019，
  
  Revised：2019-04-28，
  
  Online First：24 July 2026，
  
  Published：05 July 2019
- 稿件说明：
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朱啸林, 徐存英, 唐杰, 华一新, 张启波, 刘海, 王祥, 黄梦婷. 氯化铬和氯化镍浓度及其存在形式对ChCl-EG低共熔溶剂电导率的影响[J]. 化工学报, 2019, 70(7): 2786-2794

ZHU Xiaolin, XU Cunying, TANG Jie, HUA Yixin, ZHANG Qibo, LIU Hai, WANG Xiang, HUANG Mengting. Effects of existence form and concentrations of NiCl₂·6H₂O and CrCl₃·6H₂O on conductivity of ChCl-EG deep eutectic solvent[J]. CIESC Journal, 2019, 70(7): 2786-2794 DOI: 10.11949/0438-1157.20190060.
朱啸林, 徐存英, 唐杰, 华一新, 张启波, 刘海, 王祥, 黄梦婷. 氯化铬和氯化镍浓度及其存在形式对ChCl-EG低共熔溶剂电导率的影响[J]. 化工学报, 2019, 70(7): 2786-2794 DOI： 10.11949/0438-1157.20190060.

ZHU Xiaolin, XU Cunying, TANG Jie, HUA Yixin, ZHANG Qibo, LIU Hai, WANG Xiang, HUANG Mengting. Effects of existence form and concentrations of NiCl₂·6H₂O and CrCl₃·6H₂O on conductivity of ChCl-EG deep eutectic solvent[J]. CIESC Journal, 2019, 70(7): 2786-2794 DOI: 10.11949/0438-1157.20190060. DOI：

摘要

研究了氯化铬(CrCl

·6H

O)和氯化镍(NiCl

·6H

O)浓度和存在形式对氯化胆碱-乙二醇(ChCl-EG)低共熔溶剂的黏度和电导率的影响。电喷雾质谱(ESI-MS)分析结果表明，在溶解有CrCl

∙6H

O和NiCl

∙6H

O 的ChCl-EG(ChCl-EG-NiCl

·6H

O-CrCl

·6H

O)溶液中出现了配阴离子[Cr(H

]

–

和[Ni(H

]

。由此可以推断，Cr

(或Ni

)的两个d轨道、4s 和4p轨道发生d

杂化，形成6个等同的杂化轨道，接受6个配体(Cl

和H

O)形成阴离子配合物。该溶液的电导率随温度的升高而增大，随总金属离子浓度的增大而减小。此外，溶液黏度随温度和总金属离子浓度的变化趋势与电导率相反。这主要是由于镍和铬配离子的形成改变了溶液中的离子组成。

Abstract

The effects of existence form and total concentration of chromium chloride (CrCl

·6H

O) and nickel chloride (NiCl

·6H

O) on the conductivity and viscosity of choline chloride (ChCl)- ethylene glycol (EG) deep eutectic solvent were investigated. The ESI-MS analysis indicated that six-coordinated complexes are presented in the form of [Cr(H

]

and [Ni(H

]

. It is deduced that the complex anions are formed through d

hybrid orbitals of Cr

(or Ni

) ion and six d

hybrid orbitals are all filled with lone pair electrons which are donated by Cl

and O atoms of H

respectively. With the increase of temperature or decrease of total metal ions concentration

the electrical conductivity increases. In addition

the viscosity of the solution changes with temperature and total metal ion concentration as opposed to conductivity. This is mainly due to the formation of ions in the solution due to the formation of nickel and chromium complex ions.

关键词

Keywords

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