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Polymorphic transition

Term · Chemistry · MLC-T-CHM-009208

A reversible phase transition in a solid material where a substance changes its crystal structure without altering its chemical composition. This transformation occurs at a specific temperature and pressure, leading to different crystalline forms (polymorphs) of the same compound. An example is the transition between alpha-quartz and beta-quartz.

Table 1. Record
IdentifierMLC-T-CHM-009208
FieldChemistry
SubjectInorganic Chemistry
Synonymsenantiotropic transition
ReferencesPAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 588 (https://doi.org/10.1351/pac199466030577)
See alsoInversion point; Reversible transition
Record as JSON
{
  "id": "MLC-T-CHM-009208",
  "term": "Polymorphic transition",
  "field": "Chemistry",
  "definition": "A reversible phase transition in a solid material where a substance changes its crystal structure without altering its chemical composition. This transformation occurs at a specific temperature and pressure, leading to different crystalline forms (polymorphs) of the same compound. An example is the transition between alpha-quartz and beta-quartz.",
  "synonyms": [
    "enantiotropic transition"
  ],
  "subject": "Inorganic Chemistry",
  "see_also": [
    "inversion point",
    "reversible transition"
  ],
  "references": [
    "PAC, 1994, 66, 577. 'Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)' on page 588 (https://doi.org/10.1351/pac199466030577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/polymorphic-transition/"
}

Record 9,784 of 13,678 in Chemistry terminology (MLC-0109). Request the full dataset.