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Sigma-Aldrich

Sodium metabisulfite

reagent grade, 97%

Sinônimo(s):

Sodium disulfite, Sodium pyrosulfite

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About This Item

Fórmula linear:
Na2S2O5
Número CAS:
7681-57-4
Peso molecular:
190.11
Número CE:
231-673-0
Número MDL:
MFCD00167602
Código UNSPSC:
12352302
ID de substância PubChem:
329751131
NACRES:
NA.55

grau

reagent grade

Ensaio

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

cadeia de caracteres 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

chave InChI

HRZFUMHJMZEROT-UHFFFAOYSA-L

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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.

Pictogramas

CorrosionExclamation mark
GHS05,GHS07

Palavra indicadora

Danger

Frases de perigo

H302,H318

Classificações de perigo

Acute Tox. 4 Oral - Eye Dam. 1

Perigos de suplementos

EUH031

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Certificados de análise (COA)

Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.

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