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Inversion point

Term · Chemistry · MLC-T-CHM-006059

The specific temperature at which a reversible polymorphic transition occurs between two crystalline forms of a substance. At this temperature, the two solid phases coexist in equilibrium at a given pressure. For example, the transition between α-quartz and β-quartz occurs at an inversion point of 573 °C at atmospheric pressure.

Table 1. Record
IdentifierMLC-T-CHM-006059
FieldChemistry
SubjectInorganic Chemistry
ReferencesPAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 584 (https://doi.org/10.1351/pac199466030577)
See alsoPolymorphic transition
Record as JSON 
{
  "id": "MLC-T-CHM-006059",
  "term": "Inversion point",
  "field": "Chemistry",
  "definition": "The specific temperature at which a reversible polymorphic transition occurs between two crystalline forms of a substance. At this temperature, the two solid phases coexist in equilibrium at a given pressure. For example, the transition between α-quartz and β-quartz occurs at an inversion point of 573 °C at atmospheric pressure.",
  "subject": "Inorganic Chemistry",
  "see_also": [
    "polymorphic transition"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 584 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/inversion-point/"
}

Record 6,430 of 13,678 in Chemistry terminology (MLC-0109). Request the full dataset.