Thermal conductivities of liquids: new determinations for seven liquids and appraisal of existing values

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°C. The liquids studied are water, heavy water (99·95% 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.