161519

Sodium metabisulfite

reagent grade, 97%

• Synonym(s): Sodium disulfite, Sodium pyrosulfite
• Linear Formula: Na₂S₂O₅
• CAS Number: 7681-57-4
• Molecular Weight: 190.11
• Número EC: 231-673-0
• Número MDL: MFCD00167602
• ID de substância PubChem: 329751131
• NACRES: NA.55

Properties

• grau: reagent grade
• Nível de qualidade: 100
• teor: 97%
• forma: powder or crystals
• pH: 4.5 (20 °C, 50 g/L)
• pf: >300 °C (lit.)
• solubilidade: water: soluble 650 g/L at 20 °C
• SMILES string: [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
• InChI key: HRZFUMHJMZEROT-UHFFFAOYSA-L

Description

Descrição geral

Sodium metabisulfite (MBS, Sodium disulfite) is the sodium salt of disulphurous (pyrosulfurous) acid. It is also commonly added to various food products and wines as a preservative.

Aplicação

Sodium metabisulfite may be used to initiate the cross-linking of polybutadiene by free radical polymerization. It may be used to prevent the oxidation (as antioxidant) during the preparation of stock solutions of 6-hydroxydopamine (6-OHDA) and 6-OHDA HBr in various studies.

Safety Information

• Pictogramas: GHS05,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H302 - H318
• Declarações de precaução: P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P501
• Classificações de perigo: Acute Tox. 4 Oral - Eye Dam. 1
• Perigos de suplementos: EUH031
• Código de classe de armazenamento: 13 - Non Combustible Solids
• WGK: WGK 1
• Ponto de fulgor (ºF): Not applicable
• Ponto de fulgor (ºC): Not applicable