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Electrical conductivity of electrolytes applicable to natural waters from 0 to 100 degrees C

Journal of Chemical and Engineering Data
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https://doi.org/10.1021/je101012n

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Abstract

The electrical conductivities of 34 electrolyte solutions found in natural waters ranging from (10-4 to 1) mol•kg-1 in concentration and from (5 to 90) °C have been determined. High-quality electrical conductivity data for numerous electrolytes exist in the scientific literature, but the data do not span the concentration or temperature ranges of many electrolytes in natural waters. Methods for calculating the electrical conductivities of natural waters have incorporated these data from the literature, and as a result these methods cannot be used to reliably calculate the electrical conductivity over a large enough range of temperature and concentration. For the single-electrolyte solutions, empirical equations were developed that relate electrical conductivity to temperature and molality. For the 942 molar conductivity determinations for single electrolytes from this study, the mean relative difference between the calculated and measured values was 0.1 %. The calculated molar conductivity was compared to literature data, and the mean relative difference for 1978 measurements was 0.2 %. These data provide an improved basis for calculating electrical conductivity for most natural waters.
Publication type Article
Publication Subtype Journal Article
Title Electrical conductivity of electrolytes applicable to natural waters from 0 to 100 degrees C
Series title Journal of Chemical and Engineering Data
DOI 10.1021/je101012n
Volume 56
Issue 2
Year Published 2011
Language English
Publisher American Chemical Society
Contributing office(s) Branch of Regional Research-Central Region, Toxic Substances Hydrology Program
Description 11 p.
First page 317
Last page 327
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