Accession Number : ADA132782

Title :   Excitation Frequency Dependence of Conductivity of Electrolytic Solutions.

Descriptive Note : Master's thesis,


Personal Author(s) : Kolbeck,John Benedict

PDF Url : ADA132782

Report Date : Jun 1983

Pagination or Media Count : 89

Abstract : The frequency dependence of the electrolytic conductivity was studied for solutions of varying concentrations of NaC1, MgSO4, KC1, and KBr. An experimental test fixture was designed and an equivalent electrical model of the test system developed. A theoretical model of the conductivity that accounts for charge carrier inertia is proposed. Measured values of the impedance at various frequencies were used to generate test system model parameters, and subsequently identify sample response. Interpretation of the sample response using the conductivity model allowed determination of the conductivity, which is presented in the form of the D.C. value or real part, Ko and the non-dielectric time constant, Tc. The conductivity of the solutions decreased with increasing frequency and the initial measurements of Tc were of the order of nanoseconds. Variations in Ko with salinity were in agreement with the empirical formula of Walden.

Descriptors :   *Electrolytic cells, *Electrical conductivity, *Electrolysis, Solutions(Mixtures), Excitation, Frequency, Determination, Magnesium sulfates, Sodium chloride, Potassium chloride, Potassium compounds, Bromides, Theses

Subject Categories : Inorganic Chemistry
      Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE