Dielectric properties and structure of water at room temperature. New experimental data in 5 Hz-13 MHz frequency range.

The dielectric permittivity of destilled water was measured in the frequency range of 5 Hz to 13 MHz with different thicknesses of the sample and for various oscillator levels. The two electrode method was used with plate condenser. A simple model, composed of a dipole liquid with domain structure is described. Basing on the model, we show possible ways of polarization. The present conclusions relate dielectric properties of water which result from the model. We propose a new conductivity model for dipole liquid with domain structure. Measurements of dielectric permittivity are consistent with the model. It is shown that experimental dielectric permittivity curves are a superposition two Debye's curves with different relaxation times and two different values of static dielectric constant. Debye's resonance for lower frequency is associated with oxygen's domain structure and for higher frequency with hydrogen's domain structure. We observe an increase of dielectric permittivity with time associated with ordering of the structure after filling. For thin samples we can observe damping of the Debye's resonance and interaction of the domains' structures. (C) 2000 Elsevier Science Ltd. All rights reserved.