Dielectric Permittivity and pvT data of some n -alkanes

Abstract

Combined measurements of density and dielectric permittivity have been made for six n -alkanes from n -pentane to n -decane at temperatures from — 25 to 100 °C and a t various pressures up to 300 MPa. The molecular polarizability falls with increase in density in a nonlinear fashion. It displays a temperature effect whose magnitude is alternately large and small in the odd and even numbers of the series. The density data have been extensively compared with other sources, revealing significant devergences. The possibilities for an equation of state based on combined ε, ρ measurements are discussed.