J. Herbert Jones in the Phil. Mag. for July, 1925, gives the results of experiments on The Influence of the Surrounding Medium on Frictional Electricity. In one of these experiments he uses pure paraffin oil which he heats by a coil of lead piping through which steam is blown. It was found that the resistance of the oil decreases steadily with a rise in temperature until the temperature reached 75°C. The resistance then seemed to remain fairly constant until the temperature rose further to 90°C. At this temperature the resistance seemed to break down suddenly.
Proceedings of the Iowa Academy of Science
©1927 Iowa Academy of Science, Inc.
Morehouse, C. A.
"The Electric Conductivity of Kerosene and Gasoline as a Function of the Temperature,"
Proceedings of the Iowa Academy of Science, 34(1), 271-272.
Available at: https://scholarworks.uni.edu/pias/vol34/iss1/68