Micropore

{
  "id": "MLC-T-CHM-007349",
  "term": "Micropore",
  "field": "Chemistry",
  "definition": "A pore within a material having an internal width of less than 2 nanometers. This classification distinguishes the smallest pores from larger mesopores (2 to 50 nm) and macropores (greater than 50 nm). The IUPAC defines this size range for characterizing porous solids like zeolites and activated carbons, which have high surface areas.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "macropore",
    "mesopore"
  ],
  "references": [
    "PAC, 1972, 31, 577. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry' on page 585 (https://doi.org/10.1351/pac197231040577)",
    "PAC, 1976, 46, 71. 'Manual of Symbols and Terminology for Physicochemical Quantities and Units - Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis' on page 79 (https://doi.org/10.1351/pac197646010071)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/micropore/"
}