Temperature Coefficient of Dielectric Constant for Organic Liquids of Homologous Series

Abstract

The dielectric constants of various organic liquids of straight-chain were measured between 0° C and 50° C. The following empirical relations have been obtained: log D= log α+d-bt, α=c/Tb +d, and b=e/Tb+f, where D is dielectric constant, t(° C) is temperature, Tb(° K) is normal boiling point of a compound, α and b are constants characteristic of each compound, and c, d, e, and f are constants characteristic of each homologous series. The values of D calculated by these equations agreed satisfactorily with the experimental ones.