S2252

Sodium nitrite

ReagentPlus^®, ≥99.0%

• Formule linéaire : NaNO₂
• CAS Number: 7632-00-0
• Poids moléculaire : 69.00
• Numéro CE : 231-555-9
• Numéro MDL: MFCD00011118
• Code UNSPSC : 12352302
• ID de substance PubChem : 329824517
• Nomenclature NACRES : NA.21

Propriétés

• Niveau de qualité: 200
• Gamme de produits: ReagentPlus^®
• Essai: ≥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

Description

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 (NO_x).

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

Informations sur la sécurité

• Pictogrammes: GHS03,GHS06,GHS09
• Mention d'avertissement: Danger
• Mentions de danger: H272,H301,H319,H400
• Conseils de prudence: P210 - P220 - P264 - P273 - P301 + P310 - P305 + P351 + P338
• 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