<i>p,T</i>‐Dependence of Self‐diffusion in Liquid Ethanol and the Propanols

Abstract

Abstract The p,T ‐dependence of the self diffusion coefficients D for ethanol‐OD, 1‐ and 2‐propanol‐OH and ‐OD have been studied in a wide temperature range at pressures up to 200 MPa. The experiments were performed in strengthened high pressure glass cells by the pulsed field gradient NMR‐technique. The isobaric temperature dependence of D is given by the VTF‐equation. The isotherms can be fitted to the rough hard sphere model with an A ‐parameter that decreases strongly with falling temperature.