TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The temperature at which [the] crystals [of a pure substance] are in equilibrium with the liquid phase at atmospheric pressure.  6, record 1, English, - melting%20point

Record number: 1, Textual support number: 1 CONT

The melting point of a substance should be considered a property of its crystalline form only. At the melting point the liquid and solid forms of a substance exist in equilibrium. All substances of crystalline nature have their characteristic melting points. For very pure substances the temperature range over which the process of fusion occurs is very small. The melting point of a pure crystalline solid is a function of pressure; it increases with increasing pressure for most substances. However, in the case of ice (and a few other substances) the melting point decreases with increasing pressure ... Under a pressure of one standard atmosphere, the melting point of pure ice is the same as the ice point, that is, 0°C.  7, record 1, English, - melting%20point

Record number: 1, Textual support number: 1 OBS

The melting point is the temperature at which a solid material becomes liquid. The freezing point is the temperature at which liquid material becomes a solid.  8, record 1, English, - melting%20point

Record number: 1, Textual support number: 2 OBS

The term "melting point" (mp) is used when the equilibrium temperature is approached by heating the solid. Ordinarily refers to temperature above 0°C, the melting point of ice.  6, record 1, English, - melting%20point

Record number: 1, Textual support number: 3 OBS

... melting point and freezing point are often used interchangeably depending on whether the substance is being heated or cooled.  6, record 1, English, - melting%20point

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Température à laquelle, sous une certaine pression, le solide et le liquide sont en équilibre.  4, record 1, French, - point%20de%20fusion

Record number: 1, Textual support number: 1 OBS

L'abréviation T_f est utilisée dans les cahiers de la collection Enviroguide d'Environnement Canada.  3, record 1, French, - point%20de%20fusion

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Para una sustancia, la temperatura correspondiente al paso de la fase sólida a la líquida.  4, record 1, Spanish, - temperatura%20de%20fusi%C3%B3n

Record number: 1, Textual support number: 1 OBS

Es función de la presión.  4, record 1, Spanish, - temperatura%20de%20fusi%C3%B3n

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The temperature at which a pure metal, compound or eutectic changes from solid to liquid ...  4, record 2, English, - melting%20point

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Température à laquelle un métal pur, un composé ou un eutectique passe de l'état solide à l'état liquide.  3, record 2, French, - point%20de%20fusion

Record number: 2, Textual support number: 1 CONT

Le point de fusion d'un corps (un métal en particulier) représente la température à laquelle coexiste son état solide et son état liquide. Le point de fusion est une constante d'une substance pure, comme les éléments du tableau périodique. Elle est habituellement calculée sous pression atmosphérique normale (1 atmosphère). Il est donc possible, en connaissant son point de fusion, de déterminer la nature d'une substance. Lorsqu'une substance solide est chauffée, elle augmente de température jusqu'à atteindre le point de fusion. Une fois au point de fusion, la température reste constante tant que la substance n'est pas passée entièrement sous phase liquide. Ensuite, la température de la substance, maintenant liquide, continue à s'élever. Contrairement à la température de vaporisation (point d'ébullition), le température de fusion est assez insensible aux changements de pression.  4, record 2, French, - point%20de%20fusion

Record 2,  Textual support,  Spanish

Record number: 2, Textual support number: 1 CONT

Si se exceptúan ciertos compuestos que se descomponen antes de fundirse, todos los cuerpos son fusibles a una temperatura más o menos elevada que constituye su punto de fusión.  2, record 2, Spanish, - punto%20de%20fusi%C3%B3n