Thermal conductivity of aqueous potassium chloride solutions

This paper presents new absolute measurements of the thermal conductivity of aqueous potassium chloride solutions using the transient coated-hot-wire technique. The data cover the range from 295 to 360 K at pressures slightly above the vapor pressures and over a concentration range of 0 to 3 mol tim...

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Bibliographic Details
Published in:International journal of thermophysics 2000-05, Vol.21 (3), p.671-679
Main Authors: RAMIRES, M. L. V, NIETO DE CASTRO, C. A
Format: Article
Language:English
Subjects:
Chemistry
Electrochemistry
Electrolytes
Exact sciences and technology
General and physical chemistry
Potassium compounds
Pressure effects
Properties of electrolytes: conductivity
Solution properties
Solutions
Thermal effects
Thermal variables measurement
Vapor pressure
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Summary:This paper presents new absolute measurements of the thermal conductivity of aqueous potassium chloride solutions using the transient coated-hot-wire technique. The data cover the range from 295 to 360 K at pressures slightly above the vapor pressures and over a concentration range of 0 to 3 mol times kg super(-1). The instrument can be used to measure the thermal conductivity with a reproducibility of better than 0.2%, and a comparison of the present results with data available in the literature indicates that the uncertainty of the present data is better than 0.5%. An empirical correlation that reproduces the data within the claimed uncertainty is presented.
ISSN:0195-928X
1572-9567
DOI:10.1023/A:1006628419636