TERMIUM Plus®

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CLONO2 [1 record]

Record 1 2012-10-24

English

Subject field(s)
  • Chemical Elements and Compounds
  • Climate Change
Universal entry(ies)
ClONO2
formula, see observation
ClNO3
formula, see observation
DEF

Molecule that acts as a chlorine reservoir and plays a fundamental role in ozone destruction.

CONT

An "unexpected missing factor" may have surfaced in 1976 when the presence of trace levels of chlorine nitrate were detected in the stratosphere. The minor natural sink for ozone may furnish a way of scavenging the chlorine atoms generated from Freons, thereby reducing their effect on the ozone layer.

OBS

Chemical formula: ClONO2 or ClNO3

French

Domaine(s)
  • Éléments et composés chimiques
  • Changements climatiques
Entrée(s) universelle(s)
ClONO2
formula, see observation
ClNO3
formula, see observation
DEF

Molécule qui sert de réservoir au chlore et dont le rôle dans la destruction de l'ozone est fondamental.

OBS

On croit que le chlore, un destructeur d'ozone, est stocké sous forme de nitrate de chlore, un élément important des nuages glacés polaires; au printemps austral (octobre), tout le chlore libéré sous l'effet du soleil entre subitement en action et ce phénomène serait à l'origine du trou d'ozone. La dissociation du nitrate de chlore libère les deux types de substances les plus destructrices pour l'ozone : le chlore et les oxydes d'azote.

OBS

Formule chimique : ClONO2 ou ClNO3

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Cambio climático
Entrada(s) universal(es)
ClONO2
formula, see observation
ClNO3
formula, see observation
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