TERMIUM Plus®

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VAPEUR ARSENIC [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2013-09-03

English

Subject field(s)
  • Chemistry
CONT

Arsenic. ... A yellow modification which has no metallic properties has been reported from sudden cooling of As-vapor. This yellow arsenic is converted back to the gray modification upon very short exposure to ultraviolet light.

OBS

arsenic. ... Allotropic forms: black, amorphous solid (ß-arsenic), yellow, crystalline solid ...

French

Domaine(s)
  • Chimie
CONT

L'arsenic [...] est un solide qui possède plusieurs variétés allotropiques. On peut signaler : l'arsenic gris [...]; l'arsenic noir [...]; l'arsenic jaune, forme [alpha] cubique instable, obtenue par refroidissement brusque de la vapeur, moins dense encore et soluble dans le sulfure de carbone.

CONT

Par refroidissement brutal(trempe) de la vapeur, on obtient la variété a [alpha] ou arsenic jaune [...]. L'arsenic a [alpha] [...] se transforme en arsenic gris ou g [gamma] sous l'action du brome et de l'iode, ou lorsqu'on l'expose à la lumière [...]

OBS

Le mot «alpha» doit être remplacé par la lettre grecque correspondante ou s’écrire en italique.

Key term(s)
  • arsenic a

Spanish

Campo(s) temático(s)
  • Química
CONT

Los vapores del arsénico son amarillos y se hallan formados por la molécula As4. Su condensación en la oscuridad a temperaturas inferiores a 0º da arsénico amarillo, de densidad igual a 2,0.

Key term(s)
  • arsénico a
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Record 2 1988-09-30

English

Subject field(s)
  • Chemistry
CONT

Arsenic. ... A yellow modification which has no metallic properties is obtained by sudden cooling of As-vapor. This yellow arsenic is converted back to the gray modification upon very short exposure to ultraviolet light.

French

Domaine(s)
  • Chimie
CONT

(...) L'arsenic jaune [correspond à la] forme [alpha] cubique instable [de l'arsenic], obtenue par refroidissement brusque de la vapeur(...). Quant à la vapeur d’arsenic, elle a une couleur jaune et correspond jusque vers 1 000 [degrés C] à la molécule As4.

Spanish

Save record 2

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