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Potassium Disulfite
(CAS RN:16731-55-8 Product Number:P2480)

Structure

Potassium Disulfite
Synonym Potassium Metabisulfite
Synonym Potassium Pyrosulfite

General Information

Product Number P2480

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Purity/Analysis Method >97.0%(T)
Storage Temperature
M.F. / M.W. K2S2O5=222.31
CAS RN 16731-55-8
Related CAS RN
MDL Number MFCD00167605
Packaging and Container
  • Product Details
  • Safety & Regulations
  • Reference & Application

Specification

Purity min. 97.0 %

Data of Reference

mp 190°C(dec.)(lit.)
λmax 267(H2O)(lit.)

References

Reaxys-RN 14412766
PubChem SID 354334090
Merck Index(14) 7645
RTECS# TT4920000

GHS

Pictogram
Signal Word Danger
Hazard Statements
  • H318
  • :Causes serious eye damage.
Precautionary Statements
  • P280
  • :Wear face protection.
  • P305+P351+P338+P310
  • :If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a poison center or doctor.

Application

An Antioxidant and an Antimicrobial Additive

Potassium disulfite is used as an antioxidant or an antimicrobial additive in mainly the food industry. (The product is not food-grade and is for research purpose only.)

References

Direct Sulfonation of Aryl Boronic Acids using Potassium Disulfite as a SO2 Source

P2480

References

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