Transport number

{
  "id": "MLC-T-CHM-013667",
  "term": "Transport number",
  "field": "Chemistry",
  "definition": "The portion of the total electrical current in an electrolyte solution that is carried by a specific type of ion. It is a dimensionless quantity representing the contribution of a given ionic species (cation or anion) to the overall charge transport when a potential difference is applied. The sum of the transport numbers for all ionic species present in the electrolyte is equal to one.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "current density"
  ],
  "references": [
    "Green Book, 2nd ed., p. 60 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/transport-number/"
}