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1.23.4: Water: Relative Permittivity

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    Parallel with interest in the \(\mathrm{p}-\mathrm{V}-\mathrm{T}\) properties of water(\(\ell\)), enormous interest has been shown in the relative permittivity of water(\(\ell\)) as a function of \(\mathrm{T}\) and \(\mathrm{p}\). Owen and Brinkley [1] showed that a type of Tait equation could be used to express the \(\mathrm{T}-\mathrm{p}\) dependence of the relative permittivity of many liquids, including water(l). In 1980, Uematsu and Franck reviewed published information concerning the permittivity of water(\(\ell\)) and steam published over a period of 100 years [2,3].

    A careful determination was reported by Deul in 1984 [4]. At \(298.15 \mathrm{~K}\) and ambient pressure, the relative permittivities of water(\(\ell\)) and \(\mathrm{D}_{2}\mathrm{O}(\ell\)) are 78.39 and 78.06 respectively [5]. A report by Owen and co-workers in 1961 stated a value of 78.358 for water(\(\ell\)) at \(298.15 \mathrm{~K}\). Bradley and Pitzer [7] survey published relative permittivities of water(\(\ell\)) over an extensive temperature range.

    Footnotes

    [1] B. B. Owen and S. R. Brinkley, Phys. Rev.,1943,64,32.

    [2] M. Uematsu and E. U. Franck, J. Phys. Chem. Ref. Data, 1980, 9,1291.

    [3] K. Heger, M. Uematsu and E. U. Franck, Ber. Bunsenges, Phys.Chem.,1980,84,758.

    [4] R. Deul, PhD Thesis, Faculty of Chemistry, University of Karlsruhe, 1984.

    [5] G. A. Vidulich, D. F. Evans and R. L. Kay, J.Phys.Chem.,1967,71,656.

    [6] B. B. Owen, R. C. Miller, C. E. Milner and H. L. Cogan, J. Phys. Chem., 1961, 65, 2065.

    [7] D. J. Bradley and K. S. Pitzer, J Phys.Chem.,1979,83,1599.

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