Self-diffusion in carbon disulphide under pressure
Abstract
Measurements have been made of the self-diffusion of carbon disulphide using a radioactive-tracer technique over the temperature range 268–313 K for pressures up to almost 400 MPa covering an overall liquid density range of 16.2–19.8 mol dm–3. There is no agreement with the much earlier data of Koeller and Drickamer. Despite the non-spherical shape of the carbon disulphide molecule the data are correlated quite well by the rough, hard-spheres treatment of Chandler with physically reasonable values of the equivalent hard-spheres diameter which decrease with increasing temperature.