08982

Sodium metabisulfite

analytical standard

• Synonyme(s) : E223, Sodium disulfite, Sodium pyrosulfite
• Formule linéaire : Na₂S₂O₅
• Numéro CAS: 7681-57-4
• Poids moléculaire : 190.11
• Numéro CE : 231-673-0
• Numéro MDL: MFCD00167602
• Code UNSPSC : 85151701
• ID de substance PubChem : 329748655
• Numéro E: E223
• Nomenclature NACRES : NA.24

Propriétés

• Qualité: analytical standard
• Niveau de qualité: 100
• Pureté: ≥98.0% (iodometric, RT)
• Durée de conservation: limited shelf life, expiry date on the label
• Pf: >300 °C (lit.)
• Traces d'anions: chloride (Cl^-): ≤50 mg/kg; thiosulfate (S₂O₃^2-): ≤500 mg/kg
• Traces de cations: As: ≤0.5 mg/kg; Ca: ≤10 mg/kg; Cd: ≤5 mg/kg; Co: ≤5 mg/kg; Cr: ≤5 mg/kg; Cu: ≤5 mg/kg; Fe: ≤5 mg/kg; K: ≤200 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Zn: ≤5 mg/kg
• Application(s): cleaning products; cosmetics; food and beverages; personal care
• Format: neat
• Chaîne SMILES: [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O
• InChI: 1S/2Na.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
• Clé InChI: HRZFUMHJMZEROT-UHFFFAOYSA-L

Description

Description générale

Sodium metabisulfite is primarily used as an antioxidant and antimicrobial agent in a wide variety of foods and drugs. It is also used as the main additive in the prevention of melanosis in shrimp.

Application

Sodium metabisulfite may be used as an antioxidant which when added to anesthetic formulations serves to minimize epinephrine oxidation in the quantification of epinephrine in dental anesthetic solutions by capillary electrophoresis. Sodium metabisulfite may also be used as a standard in the determination of catecholamines in human plasma by high-performance liquid chromatography with electrochemical detection.

Remarque sur l'analyse

metal trace analysis: corresponds to requirements

Informations sur la sécurité

• Pictogrammes: GHS05,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H302,H318
• Conseils de prudence: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• Classification des risques: Acute Tox. 4 Oral - Eye Dam. 1
• Risques supp: EUH031
• 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