Thermodiffusionsfaktor von n-Heptan—Benzol mit einer Autokollimationsmethode / The Thermal Diffusion Factor of n-Heptane — Benzene

Abstract

The concentration-dependence of the thermal diffusion factor α is determined in the binary system n-heptane - benzene at 25 °C. α ranges from 0.72 to 2.39 for the mole fraction of benzene going from 0.1 to 0.9. By the aid of a mirror the sensing light beam passes the cell twofold, which results in a corresponding higher sensitivity.