Glass-transition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton magnetic resonance study of chlorozinc complexation in the system ZnCl2+LiCl+H2O

A. J. Easteal, E. J. Sare, C. T. Moynihan, Charles Angell

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27 Citations (Scopus)

Abstract

Several physicochemical techniques have been utilized to study mixed aqueous solutions of ZnCl2 and LiCl along selected pseudobinary composition lines in the concentration range from 2.8 to 22.2 m. Measurements of glasstransition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton chemical shift indicate with varying sensitivity that the behavior of these electrolytes is dominated by chlorozinc complexation. The effects of complexation are most sensitively shown by the PMR spectra. In solutions containing more than 6 moles of water per mole of salt, it is probable that several complexation equilibria occur. When the water content is reduced to less than 6 moles per mole of salt, formation of tetrachlorozincate anions appears almost exclusively to be responsible for the composition variation of the physical properties of the solutions. ZnCl4 = appears to be an even weaker base than ClO4 -.

Original languageEnglish (US)
Pages (from-to)807-821
Number of pages15
JournalJournal of Solution Chemistry
Volume3
Issue number11
DOIs
StatePublished - Nov 1974
Externally publishedYes

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Refractometry
proton magnetic resonance
Transition Temperature
Complexation
Viscosity
Density (specific gravity)
glass transition temperature
Glass
Protons
Refractive index
Magnetic Resonance Spectroscopy
Nuclear magnetic resonance
refractivity
viscosity
Salts
Water
Chemical shift
salts
Chemical analysis
Water content

Keywords

  • complex ions
  • Concentrated aqueous solutions
  • conductivity
  • glass transition temperature
  • proton chemical shift
  • refractive index
  • viscosity

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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title = "Glass-transition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton magnetic resonance study of chlorozinc complexation in the system ZnCl2+LiCl+H2O",
abstract = "Several physicochemical techniques have been utilized to study mixed aqueous solutions of ZnCl2 and LiCl along selected pseudobinary composition lines in the concentration range from 2.8 to 22.2 m. Measurements of glasstransition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton chemical shift indicate with varying sensitivity that the behavior of these electrolytes is dominated by chlorozinc complexation. The effects of complexation are most sensitively shown by the PMR spectra. In solutions containing more than 6 moles of water per mole of salt, it is probable that several complexation equilibria occur. When the water content is reduced to less than 6 moles per mole of salt, formation of tetrachlorozincate anions appears almost exclusively to be responsible for the composition variation of the physical properties of the solutions. ZnCl4 = appears to be an even weaker base than ClO4 -.",
keywords = "complex ions, Concentrated aqueous solutions, conductivity, glass transition temperature, proton chemical shift, refractive index, viscosity",
author = "Easteal, {A. J.} and Sare, {E. J.} and Moynihan, {C. T.} and Charles Angell",
year = "1974",
month = "11",
doi = "10.1007/BF00645686",
language = "English (US)",
volume = "3",
pages = "807--821",
journal = "Journal of Solution Chemistry",
issn = "0095-9782",
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TY - JOUR

T1 - Glass-transition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton magnetic resonance study of chlorozinc complexation in the system ZnCl2+LiCl+H2O

AU - Easteal, A. J.

AU - Sare, E. J.

AU - Moynihan, C. T.

AU - Angell, Charles

PY - 1974/11

Y1 - 1974/11

N2 - Several physicochemical techniques have been utilized to study mixed aqueous solutions of ZnCl2 and LiCl along selected pseudobinary composition lines in the concentration range from 2.8 to 22.2 m. Measurements of glasstransition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton chemical shift indicate with varying sensitivity that the behavior of these electrolytes is dominated by chlorozinc complexation. The effects of complexation are most sensitively shown by the PMR spectra. In solutions containing more than 6 moles of water per mole of salt, it is probable that several complexation equilibria occur. When the water content is reduced to less than 6 moles per mole of salt, formation of tetrachlorozincate anions appears almost exclusively to be responsible for the composition variation of the physical properties of the solutions. ZnCl4 = appears to be an even weaker base than ClO4 -.

AB - Several physicochemical techniques have been utilized to study mixed aqueous solutions of ZnCl2 and LiCl along selected pseudobinary composition lines in the concentration range from 2.8 to 22.2 m. Measurements of glasstransition temperature, electrical conductance, viscosity, molar volume, refractive index, and proton chemical shift indicate with varying sensitivity that the behavior of these electrolytes is dominated by chlorozinc complexation. The effects of complexation are most sensitively shown by the PMR spectra. In solutions containing more than 6 moles of water per mole of salt, it is probable that several complexation equilibria occur. When the water content is reduced to less than 6 moles per mole of salt, formation of tetrachlorozincate anions appears almost exclusively to be responsible for the composition variation of the physical properties of the solutions. ZnCl4 = appears to be an even weaker base than ClO4 -.

KW - complex ions

KW - Concentrated aqueous solutions

KW - conductivity

KW - glass transition temperature

KW - proton chemical shift

KW - refractive index

KW - viscosity

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