1956
DOI: 10.1002/recl.19560750209
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The electrical conductivity of concentrated aqueous electrolytic solutions

Abstract: A semi-empirical equation for the conductivity of concentrated electrolytic solutions is derived from the Debye-Hlickel-Onsager limiting law. The comparison of this equation with experiment shuws agreement within a few per cent. or better, up to 4 to 5 N and in one case even up to 11 N.Measurements on NaNO, up to 4.85 N and K,Fe(CN), up to 2.96 N are reported. Details of the null-point detector and the variable-frequency oscillator used in the bridge circuit are also given.

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Cited by 12 publications
(2 citation statements)
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“…(a) Apparent molar volumes ( V ϕ ) over the entire concentration range, plotted against the square root of NaNO 3 weight percent in solution (√wt %). Key: dot, International Critical Tables; plus, Tang and Munkelwitz; solid square, melt (this work); star, Puchkov and Matashkin, square, Pearce and Hopson, triangle, Gellings, diamond, Kartzmark, solid triangle, Millero et al; plus, Nehma et al; solid diamond, Abdulagatov and Azizov; , circle, Enea et al; inverted triangle, Pena et al; line, the fitted equation. The solid vertical arrow indicates a solution saturated with respect to NaNO 3(s) .…”
Section: Resultsmentioning
confidence: 90%
“…(a) Apparent molar volumes ( V ϕ ) over the entire concentration range, plotted against the square root of NaNO 3 weight percent in solution (√wt %). Key: dot, International Critical Tables; plus, Tang and Munkelwitz; solid square, melt (this work); star, Puchkov and Matashkin, square, Pearce and Hopson, triangle, Gellings, diamond, Kartzmark, solid triangle, Millero et al; plus, Nehma et al; solid diamond, Abdulagatov and Azizov; , circle, Enea et al; inverted triangle, Pena et al; line, the fitted equation. The solid vertical arrow indicates a solution saturated with respect to NaNO 3(s) .…”
Section: Resultsmentioning
confidence: 90%
“…Although various mathematical models of conductivity with concentration have been studied, they are relatively complex and most models are not applicable to all concentration ranges. ,,,, It is difficult for high school students to use these existing models to explain the decline in conductivity as concentrations rise, and more importantly, they do not know how to build a mathematical model based on experimental data. Many complex mathematical formulas are given directly, telling students the meaning of each physical quantity but ignoring the real process of how these formulas were established.…”
Section: Introductionmentioning
confidence: 99%