Summary
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1.
We studied the temperature (20 to −20°) and frequency (102–107 cps) dependences of the dielectric permeability and dielectric loss factor of crystalline NaA zeolite in the region of low degrees of filling of the adsorption space with water.
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2.
Entirely dehydrated zeolite possesses electric conductivity of the ionic type.
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3.
When the degree of filling is increased from 0 to 9.3%, a decrease is observed in the electric conductivity of the zeolite, accompanied by a reduction of the activation energy of this process, probably due to localization of the adsorbed water molecules.
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4.
For the same reason, the dielectric relaxation time of the adsorbed water molecules is five to six orders of magnitude greater than the corresponding relaxation times observed for silica gels.
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The authors would like to express their gratitude to Ya. V. Mirskii for providing the zeolite sample for the investigation.
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya No. 11, pp. 1930–1934, November, 1964
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Fedorov, V.M., Glazun, B.A., Zhilenkov, I.V. et al. Investigation of the dielectric properties of water adsorbed by zeolites. Russ Chem Bull 13, 1839–1842 (1964). https://doi.org/10.1007/BF00844473
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DOI: https://doi.org/10.1007/BF00844473