Alkalinity

{
  "id": "MLC-T-CHM-000391",
  "term": "Alkalinity",
  "field": "Chemistry",
  "definition": "The quantitative capacity of an aqueous solution to neutralize an acid, primarily due to the presence of bicarbonate, carbonate, and hydroxide ions. It is a measure of the buffering capacity of water against pH changes. Alkalinity is typically expressed in units of milligrams of calcium carbonate per liter (mg CaCO3/L).",
  "subject": "Analytical Chemistry",
  "see_also": [
    "composite alkalinity"
  ],
  "references": [
    "PAC, 2025, 97, 137. 'Glossary of terms for mass and volume in analytical chemistry (IUPAC Recommendations 2024)' on page 2 (https://doi.org/10.1515/pac-2023-0903)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/alkalinity/"
}