Potential-determining ions

{
  "id": "MLC-T-CHM-009319",
  "term": "Potential-determining ions",
  "field": "Chemistry",
  "definition": "Ions that establish the electrical potential difference across an interface between two phases, typically a solid and a solution. Their adsorption or desorption at the surface dictates the surface charge and, consequently, the electrical potential. For many oxides, hydrogen and hydroxide ions are the primary potential-determining ions.",
  "synonyms": [
    "p.d. ions"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "adsorbent",
    "surface ions"
  ],
  "references": [
    "PAC, 1991, 63, 895. 'Nomenclature, symbols, definitions and measurements for electrified interfaces in aqueous dispersions of solids (Recommendations 1991)' on page 897 (https://doi.org/10.1351/pac199163060895)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/potential-determining-ions/"
}