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60508 Sigma

Potassium disulfite

BioUltra, ≥97.0% (RT)

Synonym: Potassium metabisulfite, Potassium pyrosulfite

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Properties

InChI Key   RWPGFSMJFRPDDP-UHFFFAOYSA-L
product line   BioUltra
assay   ≥97.0% (RT)
impurities   insoluble matter, passes filter test
pH   2.5-4.5 (25 °C, 0.1 M in H2O)
solubility   H2O: soluble0.1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤1000 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
absorption   absorption0.1M/308 nm, H2O cut-off

Description

Application

Potassium disulfite (Potassium metabisulfite) may be use to study is antioxidant effects and ability to preserve food. Potassium disulfite may be used as an inhibitor of yeasts, bacteria, and fungi growth. Potassium metabisulfite may be used to study its potential toxicities in vivo.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



Safety & Documentation

Safety Information

Symbol 
GHS05  GHS05
Signal word 
Danger
Hazard statements 
Precautionary statements 
Supplemental Hazard Statements 
Contact with acids liberates toxic gas.
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
TT4920000
Protocols & Articles
Peer-Reviewed Papers
15

References

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