The relative permittivity of supercooled water

I. M. Hodge, Charles Angell

Research output: Contribution to journalArticle

34 Scopus citations


Approximate relative permittivity data for water down to -35°C have been derived from measurements of the Maxwell-Wagner interfacial polarization which occurs at the surface of emulsified water droplets. Although the emulsifying agent strongly influences this polarization in a complex way, a novel method of data analysis enables the permittivity and conductivity to be obtained in a simple and direct manner. The derived data are in essential agreement with literature data near 0°C. To within an estimated experimental uncertainty of ±2% the present data conform to a critical exponent expression with the same critical temperature (228 K) found for many other properties of supercooled water, though the divergence is very weak.

Original languageEnglish (US)
Pages (from-to)1363-1368
Number of pages6
JournalThe Journal of Chemical Physics
Issue number4
Publication statusPublished - 1977
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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