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Merck

161519

Sigma-Aldrich

Sodium metabisulfite

reagent grade, 97%

Sinónimos:

Sodium disulfite, Sodium pyrosulfite

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About This Item

Fórmula lineal:
Na2S2O5
Número de CAS:
Peso molecular:
190.11
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de la sustancia en PubChem:
NACRES:
NA.55

grado

reagent grade

Nivel de calidad

Análisis

97%

formulario

powder or crystals

pH

4.5 (20 °C, 50 g/L)

mp

>300 °C (lit.)

solubilidad

water: soluble 650 g/L at 20 °C

cadena 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

Clave InChI

HRZFUMHJMZEROT-UHFFFAOYSA-L

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Descripción general

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.

Aplicación

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

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Acute Tox. 4 Oral - Eye Dam. 1

Riesgos supl.

Código de clase de almacenamiento

13 - Non Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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