The Self-Diffusion Coefficient of Uranium Hexafluoride
- ISSN: 0031899X
- DOI: 10.1103/PhysRev.71.14
A method is reported for measuring the self-diffusion coefficient of a vapor by observing with a mass spectrometer the rate at which material enriched in one isotope diffuses into normal material in an apparatus of known geometry. A value of ρD (where ρ is the density and D the diffusion constant) was obtained for uranium hexafluoride at 30C. Knowledge of the viscosity together with the constants reported here allow calculation of the molecular force law.