Mixing control

{
  "id": "MLC-T-CHM-007431",
  "term": "Mixing control",
  "field": "Chemistry",
  "definition": "A condition in a chemical reaction where the overall rate is limited by the speed at which reactants are brought into contact, rather than by the intrinsic chemical reaction rate. This occurs when the rate of mass transport (diffusion or convection) is slower than the rate of the chemical transformation itself. Efficient stirring or agitation can mitigate mixing control in many laboratory settings.",
  "synonyms": [
    "macroscopic diffusion control"
  ],
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "encounter-controlled rate",
    "microscopic diffusion control",
    "order of reaction",
    "rate of reaction",
    "stopped flow"
  ],
  "references": [
    "PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1141 (https://doi.org/10.1351/pac199466051077)",
    "PAC, 1996, 68, 149. 'A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)' on page 174 (https://doi.org/10.1351/pac199668010149)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/mixing-control/"
}