Dielectric Relaxation and Molecular Structure. VIII. Dielectric Relaxation of Alkyl Acetates in Benzene Solution

Dielectric constants and losses at the microwave frequency of 96.52 GHz have been measured at 25°C for methyl, ethyl, n-butyl, isobutyl, s-butyl, t-butyl, n-amyl, isoamyl, n-hexyl, and n-octyl acetates in benzene solutions. Static dielectric constants, refractive indices and densities have also been measured. The effective mean relaxation times of normal alkyl acetates increase with increasing chain length of the alkyl radical, eventually approaching a steady value. The distribution parameters α of all these molecules seem to have appreciable values which may be due to various segment orientations by internal rotation.