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Dystectic reaction

Term · Chemistry · MLC-T-CHM-003534

A reversible, isobaric transformation in which a solid compound melts to a liquid of exactly the same composition, known as congruent melting. It appears as a maximum on the melting temperature-composition curve, and this maximum, where liquid and solid compositions are equal, is the dystectic point. The compound may be stoichiometric or non-stoichiometric, and Mg2Sn in the Mg-Sn system is an example.

Table 1. Record
IdentifierMLC-T-CHM-003534
FieldChemistry
SubjectAnalytical Chemistry
Synonymscongruent melting; indifferent melting
ReferencesPAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 244 (https://doi.org/10.1351/pac200880020233)
Record as JSON
{
  "id": "MLC-T-CHM-003534",
  "term": "Dystectic reaction",
  "field": "Chemistry",
  "definition": "A reversible, isobaric transformation in which a solid compound melts to a liquid of exactly the same composition, known as congruent melting. It appears as a maximum on the melting temperature-composition curve, and this maximum, where liquid and solid compositions are equal, is the dystectic point. The compound may be stoichiometric or non-stoichiometric, and Mg2Sn in the Mg-Sn system is an example.",
  "synonyms": [
    "congruent melting",
    "indifferent melting"
  ],
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2008, 80, 233. 'Glossary of terms related to solubility (IUPAC Recommendations 2008)' on page 244 (https://doi.org/10.1351/pac200880020233)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/dystectic-reaction/"
}

Record 3,754 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.