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S2252

Sigma-Aldrich

Sodium nitrite

ReagentPlus®, ≥99.0%

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About This Item

Formule linéaire :
NaNO2
Numéro CAS:
Poids moléculaire :
69.00
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NA.21

Niveau de qualité

Gamme de produits

ReagentPlus®

Pureté

≥99.0%

Forme

powder or crystals

Température d'inflammation spontanée

914 °F

pH

9 (20 °C, 100 g/L)

Pf

271 °C (lit.)

Chaîne SMILES 

[Na+].[O-]N=O

InChI

1S/HNO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1

Clé InChI

LPXPTNMVRIOKMN-UHFFFAOYSA-M

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Description générale

Sodium nitrite is an air-sensitive and hygroscopic solid with both reducing and oxidizing properties. It is commonly used as a reagent and catalyst in synthetic organic chemistry. It is decomposed by acids (even weak acids) with the evolution of a brown mixture of nitrogen oxides (NOx).

Application

Sodium nitrite can be used as a reagent in:      
  • In the conversion of amines into diazo compounds, which are used as key precursors to many dyes, such as diazo dyes.      
  • Nef reaction and Abidi transformations.      
  • The C–C bond cleavage reaction in the presence of TFA under aerobic conditions.      
  • The oxidative carbonitration of alkenes in the presence of K2S2O8.

It can also be used as a nitrating agent in organic synthesis.
It is used in direct C-H nitration, ipso-nitration, and nitration via transition metal-catalyzed cross-coupling reaction. NaNO2 is also used as a co-catalyst for catalytic oxidation of alcohols under aerobic, solvent-free conditions.

Informations légales

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictogrammes

Flame over circleSkull and crossbonesEnvironment

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Ox. Sol. 3

Code de la classe de stockage

5.1B - Oxidizing hazardous materials

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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