Relative permittivity of dimethylsulfoxide and N,N-dimethylformamide at temperatures from (278 to 328) K and pressures from (0.1 to 5) MPa

J. Hunger; R. Buchner; M. Kandil; E.F. May; K.N. Marsh; G. Hefter

doi:10.1021/je9010773

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Relative permittivity of dimethylsulfoxide and N,N-dimethylformamide at temperatures from (278 to 328) K and pressures from (0.1 to 5) MPa

Journal article

Peer reviewed

Relative permittivity of dimethylsulfoxide and N,N-dimethylformamide at temperatures from (278 to 328) K and pressures from (0.1 to 5) MPa

J. Hunger, R. Buchner, M. Kandil, E.F. May, K.N. Marsh and G. Hefter

Journal of Chemical & Engineering Data, Vol.55(5), pp.2055-2065

2010

DOI: https://doi.org/10.1021/je9010773

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Abstract

Relative permittivities (εr) have been measured at two frequencies with an expanded (k = 2) uncertainty of 0.1 using a re-entrant radio frequency resonator in the pressure range (0.1 to 5) MPa at temperatures from (278 to 328) K for N,N-dimethylformamide (DMF) and (293 to 328) K for dimethylsulfoxide (DMSO). At 298.15 K and 0.1 MPa, the assessed literature averages of 38.4 ± 1.8 and 47.3 ± 1.8 for DMF and DMSO, respectively, are consistent with the values of 37.2 ± 0.1 and 46.0 ± 0.1 determined in this work. Possible sources of uncertainty are discussed. An empirical description of εr(p,T) is given that can be used to calculate the temperature and pressure derivatives of εr. Kirkwood g factors calculated using the present data show only minimal dipole-dipole correlations for both DMF and DMSO.

Details

Title: Relative permittivity of dimethylsulfoxide and N,N-dimethylformamide at temperatures from (278 to 328) K and pressures from (0.1 to 5) MPa
Authors/Creators: J. Hunger (Author/Creator) - University of Regensburg
R. Buchner (Author/Creator)
M. Kandil (Author/Creator) - School of Mechanical and Chemical Engineering
E.F. May (Author/Creator) - School of Mechanical and Chemical Engineering
K.N. Marsh (Author/Creator) - School of Mechanical and Chemical Engineering
G. Hefter (Author/Creator) - Murdoch University
Publication Details: Journal of Chemical & Engineering Data, Vol.55(5), pp.2055-2065
Publisher: American Chemical Society
Identifiers: 991005543022607891
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.89 Ionic, Molecular & Complex Liquids; 2.89.462 Excess Molar Volumes
Web Of Science research areas: Chemistry, Multidisciplinary; Engineering, Chemical; Thermodynamics
ESI research areas: Chemistry