08981

Sulfite de sodium

analytical standard

• Synonyme(s) : E221
• Formule linéaire : Na₂SO₃
• Numéro CAS: 7757-83-7
• Poids moléculaire : 126.04
• Numéro CE : 231-821-4
• Numéro MDL: MFCD00003503
• Code UNSPSC : 85151701
• ID de substance PubChem : 329748654
• Nomenclature NACRES : NA.24

Propriétés

• Qualité: analytical standard
• Niveau de qualité: 100
• Pureté: ≥98% (RT)
• Durée de conservation: limited shelf life, expiry date on the label
• Solubilité: H₂O: 1 g/10 mL, clear, colorless
• Application(s): cleaning products; cosmetics; food and beverages; personal care
• Format: neat
• Chaîne SMILES: [Na+].[Na+].[O-]S([O-])=O
• InChI: 1S/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
• Clé InChI: GEHJYWRUCIMESM-UHFFFAOYSA-L

Description

Description générale

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food.

Find all available reference materials for compounds listed in 10/2011 here

Application

• Oxygen scavenging and contaminant removal: Sodium sulfite′s efficacy in removing organic contaminants through oxygen scavenging in various chemical systems was documented, illustrating its critical role in environmental cleanup and wastewater treatment technologies (Zhou et al., 2023).


• Disinfection by-product management: Sodium sulfite is reviewed for its impact and mechanisms as a residual chlorine quencher, highlighting its potential to reduce harmful disinfection by-products in water treatment processes, which is vital for ensuring safe pharmaceutical and biotechnical operations (Li et al., 2023).

Informations sur la sécurité

• Code de la classe de stockage: 13 - Non Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable