Contrasting effect of tetrahedral and octahedral complexing of trivalent cations on binary molten salt solution transport properties

Charles Angell, A. Elias

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The viscosities and electrical conductances of solutions in two superficially similar binary molten salt systems, FeCl3 + α-picolinium chloride and CrCl3 + α-picolinium chloride, have been measured and shown to have strikingly different characteristics. In the first case the fluidity and the conductivity increase as FeCl3 is added to the organic salt, while with CrCl3 additions rapid decreases in these properties occur. The differences are attributed to the different coordination numbers assumed by the trivalent cations in the two cases. Both systems exhibit considerable regions of glass formations, and correlations of the transport behavior with glass transition temperatures may be made.

Original languageEnglish (US)
Pages (from-to)4704-4708
Number of pages5
JournalJournal of Physical Chemistry
Volume87
Issue number23
StatePublished - 1983
Externally publishedYes

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molten salts
Transport properties
Cations
Molten materials
Chlorides
Salts
transport properties
Positive ions
chlorides
cations
Fluidity
coordination number
glass transition temperature
Viscosity
viscosity
salts
Glass
conductivity
glass
Glass transition temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "The viscosities and electrical conductances of solutions in two superficially similar binary molten salt systems, FeCl3 + α-picolinium chloride and CrCl3 + α-picolinium chloride, have been measured and shown to have strikingly different characteristics. In the first case the fluidity and the conductivity increase as FeCl3 is added to the organic salt, while with CrCl3 additions rapid decreases in these properties occur. The differences are attributed to the different coordination numbers assumed by the trivalent cations in the two cases. Both systems exhibit considerable regions of glass formations, and correlations of the transport behavior with glass transition temperatures may be made.",
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N2 - The viscosities and electrical conductances of solutions in two superficially similar binary molten salt systems, FeCl3 + α-picolinium chloride and CrCl3 + α-picolinium chloride, have been measured and shown to have strikingly different characteristics. In the first case the fluidity and the conductivity increase as FeCl3 is added to the organic salt, while with CrCl3 additions rapid decreases in these properties occur. The differences are attributed to the different coordination numbers assumed by the trivalent cations in the two cases. Both systems exhibit considerable regions of glass formations, and correlations of the transport behavior with glass transition temperatures may be made.

AB - The viscosities and electrical conductances of solutions in two superficially similar binary molten salt systems, FeCl3 + α-picolinium chloride and CrCl3 + α-picolinium chloride, have been measured and shown to have strikingly different characteristics. In the first case the fluidity and the conductivity increase as FeCl3 is added to the organic salt, while with CrCl3 additions rapid decreases in these properties occur. The differences are attributed to the different coordination numbers assumed by the trivalent cations in the two cases. Both systems exhibit considerable regions of glass formations, and correlations of the transport behavior with glass transition temperatures may be made.

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