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About This Item
Product Name
Potassium disulfite, BioUltra, ≥97.0% (RT)
InChI key
RWPGFSMJFRPDDP-UHFFFAOYSA-L
InChI
1S/2K.H2O5S2/c;;1-6(2)7(3,4)5/h;;(H,1,2)(H,3,4,5)/q2*+1;/p-2
SMILES string
[K+].[K+].[O-]S(=O)S([O-])(=O)=O
grade
reagent grade
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: 0.1 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
cut-off at 308 nm in H2O at 0.1 M
Quality Level
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Application
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
supp_hazards
Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
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