Absorptivity

{
  "id": "MLC-T-CHM-000083",
  "term": "Absorptivity",
  "field": "Chemistry",
  "definition": "A measure of how strongly a substance absorbs light at a particular wavelength, normalized by its concentration and the path length of the light through the sample. It is an intrinsic property of a substance and is related to the molar absorption coefficient (molar absorptivity) when concentration is expressed in moles per liter. The unit for molar absorptivity is typically L mol-1 cm-1.",
  "subject": "Organic and Biomolecular Chemistry",
  "see_also": [
    "absorptance",
    "absorption coefficient",
    "attenuance"
  ],
  "references": [
    "PAC, 1996, 68, 2223. 'Glossary of terms used in photochemistry (IUPAC Recommendations 1996)' on page 2227 (https://doi.org/10.1351/pac199668122223)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/absorptivity/"
}