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ALLOTROPISM [1 record]

Record 1 2012-01-03

English

Subject field(s)
  • Mineralogy
  • Geochemistry
  • Chemistry
DEF

The existence of a substance, especially an element, in two or more different modifications usually in the same phase, as different crystalline forms of carbon, iron phosphorous, and sulfur.

OBS

The term "polymorphism" is more precise than "allotropy" or "allotropism."

French

Domaine(s)
  • Minéralogie
  • Géochimie
  • Chimie
DEF

Propriété qu'ont certains corps de se présenter sous diverses formes selon les différentes possibilités d'arrangement des atomes ou des molécules qui les constituent.

OBS

Dans le cas où le phénomène n'est pas réversible, le terme employé est «polymorphisme».

Spanish

Campo(s) temático(s)
  • Mineralogía
  • Geoquímica
  • Química
DEF

Existencia de [...] un elemento con dos o más formas significativamente distintas.

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