Apparent molar volumes and compressibilities of lanthanum, gadolinium, lutetium and sodium trifluoromethanesulfonates in N,N-dimethylformamide and N,N-dimethylacetamide

Abstract

The concentration and temperature dependencies of density of lanthanum, gadolinium, lutetium and sodium trifluoromethanesulfonates in N,N-dimethylformamide (DMF) and N,N-dimethylacetamide (DMA) have been determined. From density data the apparent molar volumes and partial molar volumes of the salts at infinite dilution as well as the expansibilities have been evaluated. The apparent molar isentropic compressibilities of lanthanum, gadolinium, lutetium and sodium trifluoromethanesulfonates in DMF and DMA have been calculated from sound velocity data obtained at 298.15 K. The results have been discussed in terms of ion-solvent interactions. (c) 2012 Elsevier Ltd. All rights reserved.

Keywords

Solvation; Apparent molar volume; Apparent molar isentropic compressibility; Lanthanoid(III) ions; N,N-dimethylacetamide; N,N-dimethylformamide

Published in

Journal of Chemical Thermodynamics
2013, volume: 58, pages: 46-54
Publisher: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD

SLU Authors

• Lundberg, Daniel

  • The Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Inorganic Chemistry
Analytical Chemistry

Publication identifier

• DOI: https://doi.org/10.1016/j.jct.2012.11.004

Permanent link to this page (URI)

https://res.slu.se/id/publ/41282