# Thermal Conductivities of Liquids: New Determinations for Seven Liquids and Appraisal of Existing Values

A. R. Challoner, R. W. Powell

## Abstract

A guarded hot-plate apparatus is described and used for absolute determinations of the thermal conductivities of liquids over the range 2 to 82 degrees C. The liquids studied are water, heavy water (99$\cdot$95% D$_{2}$O), glycerine, ethyl alcohol, toluene, medicinal paraffin and carbon tetrachloride. For each liquid graphical representation of the variation of thermal conductivity with temperature enables existing values to be compared with those of the present investigation. In general the results of Riedel are in best agreement