English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The technique presented here for the measurement of electrical conductivityis based on the principle that the current converges on a small disk electrode.Most of the ohmic resistance therefore lies within a narrow region surroundingthe disk. If the reference electrode is kept outside this zone, the potentialdifference between the working and the reference electrode includes practicallyall ohmic potential drops occurring in the solution. Moreover, this ohmic dropcan be related to the conductivity of the solution by an analytical expressionderived by Newman. At sufficiently high overpotentials, the rate of chargetransfer is limited by the conduction of current from the bulk solution to theelectrode. In this regime, the current varies linearly with the electrodepotential and the conductivity of the solution can be estimated from the slopeof the voltammogram using Newman's expression. The electrochemical reactionused for measuring conductivity of solutions of salts is the cathodic reductionof water and that used for aqueous acids is the cathodic reduction of hydrogenions. The technique has been used to measure conductivity of several commonaqueous electrolytes. A good agreement is found between the present techniqueand the conventional technique based on AC impedance analysis.

An Electrochemical Technique for Measurements of Electrical Conductivity of Aqueous Electrolytes