论文信息 - A review of specific conductivities of potassium hydroxide solutions for various concentrations and temperatures

A review of specific conductivities of potassium hydroxide solutions for various concentrations and temperatures

Abstract This article gives a critical review of the current data on the specific conductivity of aqueous potassium hydroxide (KOH) solutions. Empirical correlations relating concentration to density were developed to compare specific conductivity data given in weight percentage KOH and molarity of KOH. Available data on specific conductivity is related with respect to one another and compared to experimental data. Based on these comparisons, specific sets of reported data were used to develop an equation relating specific conductivity of aqueous KOH to temperature and concentration. This empirical correlation was developed over a molarity range of 0–12 at temperatures of 0 – 100 ∘ C . The correlation has been compared with that proposed by See and White and shows greater accuracy over the concentration range modeled.

[1] H. Seidel. Zahlenwerte und Funktionen , 1965 .

[2] Dezső Dobos,et al. Electrochemical data: A handbook for electrochemists in industry and universities , 1975 .

[3] L. Darken,et al. Conductances of Aqueous Solutions of the Hydroxides of Lithium, Sodium and Potassium at 25° , 1942 .

[4] H. V. Tartar,et al. The Ionization Constant of Monoethanolammonium Hydroxide at 25° from Electrical Conductance Measurements , 1940 .

[5] Ivan Dmitrievich Zaĭt︠s︡ev,et al. Properties of Aqueous Solutions of Electrolytes , 1992 .

[6] Ralph E. White,et al. Temperature and Concentration Dependence of the Specific Conductivity of Concentrated Solutions of Potassium Hydroxide , 1997 .