Gaseous diffusion separator

{
  "id": "MLC-T-CHM-004764",
  "term": "Gaseous diffusion separator",
  "field": "Chemistry",
  "definition": "A device that separates gases based on their molecular weights by exploiting differences in their rates of diffusion through a porous barrier. Lighter gas molecules diffuse faster than heavier ones, leading to a slight enrichment of the lighter isotope on the other side of the barrier. This method was historically used for enriching uranium isotopes, specifically uranium-235 from uranium-238.",
  "subject": "Chemistry and the Environment",
  "see_also": [
    "diffusion",
    "isotopes"
  ],
  "references": [
    "PAC, 1990, 62, 2167. 'Glossary of atmospheric chemistry terms (Recommendations 1990)' on page 2192 (https://doi.org/10.1351/pac199062112167)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/gaseous-diffusion-separator/"
}