Substance
ID:351783
Names and Identifiers
IUPAC Traditional name
dipotassium metabisulfite
IUPAC name
dipotassium sulfinatosulfonate
Synonyms
Potassium pyrosulfite偏硫代硫酸钾焦亚硫酸钾Potassium metabisulfite偏重亚硫酸钾Potassium disulfite
Properties
Product Information
abs.
absorption0.1M/308 nm, H2O cut-off
Cation Traces
Ba: ≤5 mg/kg
Cd: ≤5 mg/kg
Ca: ≤10 mg/kg
Co: ≤5 mg/kg
Li: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤1000 mg/kg
Pb: ≤5 mg/kg
Cu: ≤5 mg/kg
Sr: ≤5 mg/kg
Al: ≤5 mg/kg
Ni: ≤5 mg/kg
As: ≤0.1 mg/kg
Bi: ≤5 mg/kg
Fe: ≤5 mg/kg
Cr: ≤5 mg/kg
Mg: ≤5 mg/kg
Mo: ≤5 mg/kg
Zn: ≤5 mg/kg
Impurities
insoluble matter, passes filter test
Linear Formula
K2S2O5
Product Line
BioUltra
Purity
≥97.0% (RT)
Antion Traces
chloride (Cl-): ≤50 mg/kg
Physical Property
pH
2.5-4.5 (25 °C, 0.1 M in H2O)
Solubility
H2O: soluble0.1 M at 20 °C, clear, colorless
Safety Information
GHS Hazard statements
H315-H319-H335
RTECS
TT4920000
German water hazard class
1
GHS Pictograms
Acute toxicity (oral, dermal, inhalation), category 4
Skin irritation, category 2
Eye irritation, category 2
Skin sensitisation, category 1
Specific Target Organ Toxicity – Single exposure, category 3
European Hazard Symbols
Irritant (Xi)Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Safety Statements
26-36
GHS Signal Word
Warning
GHS Precautionary statements
P261-P305+P351+P338
MSDS Link
Risk Statements
31-36/37/38
Supplemental Hazard Statements
Contact with acids liberates toxic gas.
Molecule Details
No Data Available
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Molecular Spectra
No Data Available
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References
No Data Available
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