Dielectric Constants of Certain Organic Liquids at Medium Frequency

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Abstract
At a frequency of 85.8 kilocycles the dielectric constant was determined at one temperature for each of the following: benzene, 2.279 at 22.9°C; cinnamic aldehyde, 16.918 at 24.2°C; ethyl ether, 4.197 at 26.9°C; methyl cyclohexane, 2.071 at 24.8°C; methyl o-nitrobenzoate, 27.756 at 26.9°C; nitrobenzene, 34.369 at 26.1°C; oxalyl chloride, 3.470 at 21.2°C; n-propyl ether, 3.394 at 25.7°C; iso-propyl ether, 4.449 at 25.9°C; and propylene chloride, 8.925 at 26.1°C. At this same frequency the temperature coefficients of the dielectric constants for ortho-, meta-, and para-xylenes were determined over a temperature range of about 30°C. The data on the three xylenes were tested with the Debye theory.