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Zeitschrift für Physikalische Chemie

International journal of research in physical chemistry and chemical physics

Editor-in-Chief: Rademann, Klaus

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5-year IMPACT FACTOR: 1.021

CiteScore 2018: 1.20

SCImago Journal Rank (SJR) 2018: 0.327
Source Normalized Impact per Paper (SNIP) 2018: 0.391

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Volume 220, Issue 10


Enthalpies of Solution of Organic Solutes in the Ionic Liquids [Me3BuN][NTf2] and [EMIM][EtSO4]

E. Balantseva / J. K. Lehmann / Andreas Heintz
Published Online: 2009-09-25 | DOI: https://doi.org/10.1524/zpch.2006.220.10.1499

Partial molar enthalpies of solution of 11 systems [Me3BuN][NTf2] + methanol, + ethanol, + 1-propanol, + 1-butanol, + benzene and [EMIM][EtSO4] + methanol, + ethanol, + 1-propanol, + 1-butanol, + CHCl3, + H2O have been measured at 298.15 K in the mole fraction range 1% to 25% of the solutes using a precision titration calorimeter (Thermal Activity Monitor 2277, Thermometrics). The experimental results have been extrapolated to infinite dilution of the solutes in the ionic liquids. The partial molar enthalpies of solution at infinite dilution Hi,∞E obtained by this method have been compared with values derived from the temperature dependence of the activity coefficients at infinite dilution γi,∞ which have been obtained by a gaschromatographic technique already published previously. Not for all systems studied agreement has been found within the experimental error limits of both methods indicating thermodynamic consistency of the results.

Keywords: Ionic Liquids; Partial Molar Enthalpies; Titration Calorimetry; Thermodynamics

About the article

Received: 2006-06-12

Accepted: 2006-08-24

Published Online: 2009-09-25

Published in Print: 2006-10-01

Citation Information: Zeitschrift für Physikalische Chemie, Volume 220, Issue 10, Pages 1499–1550, ISSN (Online) 2196-7156, ISSN (Print) 0942-9352, DOI: https://doi.org/10.1524/zpch.2006.220.10.1499.

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