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P2522 Sigma-Aldrich

Potassium disulfite

≥98%

Synonym: Potassium metabisulfite, Potassium pyrosulfite

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Properties

Related Categories Chemical Synthesis, Essential Chemicals, Inorganic Salts, Potassium, Potassium Salts,
InChI Key   RWPGFSMJFRPDDP-UHFFFAOYSA-L
assay   ≥98%

Description

General description

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods. Its genotoxic and cytotoxic effect has been assessed. PMB undergoes hydrolysis to form potassium bisulfite.

Application

Potassium disulfite has been used in a protocol for the modification of the polydimethylsiloxane (PDMS) polymer surfaces.
It may be used in the following processes:
• Chemical etching of poly(vinylidene fluoride) in β-phase (β-PVDF) irradiated films.
• Decolorization during the synthesis of 2-iodopyrimidine derivatives.
• Palladium-catalyzed aminosulfonylation of aryl halides.

Packaging

500 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Contact with acids liberates toxic gas.
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
TT4920000

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Single- & multi-channel pipettes from BRAND
Protocols & Articles
Peer-Reviewed Papers
15

References

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