Partition constant

{
  "id": "MLC-T-CHM-008520",
  "term": "Partition constant",
  "field": "Chemistry",
  "definition": "The equilibrium constant for the distribution of a solute between two immiscible phases, expressed as the ratio of the activities of the solute in each phase. Unlike the partition coefficient, which uses concentrations, the partition constant is a thermodynamic quantity. It provides a more fundamental measure of the solute's preference for one phase over another.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "transfer activity coefficient"
  ],
  "references": [
    "PAC, 1993, 65, 2373. 'Nomenclature for liquid-liquid distribution (solvent extraction) (IUPAC Recommendations 1993)' on page 2385 (https://doi.org/10.1351/pac199365112373)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/partition-constant/"
}