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161519 Sigma-Aldrich

Sodium metabisulfite

reagent grade, 97%

Synonym: Sodium disulfite, Sodium pyrosulfite

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Properties

Related Categories Essential Chemicals, Research Essentials, Salts, Sodium Salts
grade   reagent grade
InChI Key   HRZFUMHJMZEROT-UHFFFAOYSA-L
assay   97%
mp   >300 °C (lit.)
solubility   water: soluble 650 g/L at 20 °C

Description

General description

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.

Application

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.

Packaging

2.5 kg in poly bottle

500 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Contact with acids liberates toxic gas.
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
UX8225000

Documents

Certificate of Analysis

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Certificate of Origin

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Protocols & Articles
Peer-Reviewed Papers
15

References

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