TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

NO2- [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2011-07-21

English

Subject field(s)
  • Chemical Elements and Compounds
  • Food Additives
Universal entry(ies)
NO2-
formula, see observation
14797-65-0
CAS number
DEF

A compound containing the radical NO2-, salt or ester of nitrous acid, which is both an oxidizing and a reducing substance, is extremely reactive to organic matter, is labile to heat, and is used in the food industry where it is added to meat to produce the characteristic cured-meat colour and flavour, to eliminate the problem of warmed-over flavour in cured meats and to prevent the outgrowth of Clostridium botulinum.

CONT

Nitrogen dioxide (NO2) is chemiadsorbed by triethanolamine (TEA) as ion NO2-. Nitrite ion is analysed by means of visible spectrophotometry.

OBS

Also known, in the biological field, under the name of "smooth muscle inhibitory factor (SMIF)."

OBS

nitrite: form recommended by the IUPAC (International Union of Pure and Applied Chemistry) for the systematic name corresponding to the CAS number indicated on the present record; term adopted by Environment Canada, used in the list of pollutants measured in the National Air Pollution Surveillance Network (NAPS).

French

Domaine(s)
  • Éléments et composés chimiques
  • Additifs alimentaires
Entrée(s) universelle(s)
NO2-
formula, see observation
14797-65-0
CAS number
DEF

Sel ou ester de l'acide nitreux, qui renferme le radical NO2-.

CONT

[Les nitrites] sont tantôt réducteurs, tantôt oxydants. Les deux nitrites les plus importants sont celui de potassium, que l'on introduit [...] dans les viandes fumées, et celui de sodium qui, en chimie organique, sert à diazoter les amines et, par suite, à préparer des matières colorantes.

CONT

Pour doser les ions nitrate en solution aqueuse, on opère en trois étapes successives : · Réduction des ions nitrate en ions nitrite par l'hydroquinone. · Réaction de diazotation avec l'acide 4-aminobenzènesulfonique (acide sulfanilique). · Réaction de couplage en milieu faiblement acide avec la N-(1-naphtyl)éthylènediamine pour donner un colorant azoïque rouge violet.

OBS

nitrite : forme recommandée par l'UICPA (Union internationale de chimie pure et appliquée) pour le nom systématique correspondant au numéro CAS indiqué sur la présente fiche; terme retenu par Environnement Canada, utilisé dans la liste des polluants mesurés par le Réseau national de surveillance de la pollution atmosphérique (RNSPA).

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
  • Aditivos alimentarios
Entrada(s) universal(es)
NO2-
formula, see observation
14797-65-0
CAS number
Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: