THERMAL-CONDUCTIVITY OF AQUEOUS SODIUM-CHLORIDE SOLUTIONS

This paper presents new absolute measurements of the thermal conductiv ity of aqueous sodium chloride solutions with the transient coated-hot -wire technique. The data cover the range 295-365 K at pressures sligh tly above the vapor pressures and a concentration range of 0-6 mol kg( -1), The instrument is;able to measure the thermal conductivity with a precision and reproducibility better than +/- 0.2%, and a comparison of the present results with data available in the literature indicates that the accuracy of the-present data is better than +/- 0.5%. An emp irical correlation that reproduces the data within the claimed accurac y is given.