CAS Number: 7757-83-7
Linear Formula: Na2SO3
Molecular Weight: 126.04
EC Number: 231-821-4
MDL Number: MFCD00003503
PubChem Substance ID: 24886335
Other Notes
Cleaves disulfide bonds to form the S-sulfonate derivative; Inhibits gram positive bacteria in culture media.
Product Line: BioUltra
Assay: ≥98.0% (RT)
Impurities: insoluble matter, passes filter test
Loss: ≤0.1% loss on drying, 20°C (HV)
pH: 9.0-10.5 (25 °C, 1 M in H2O)
Solubility: H2O: soluble1 M at 20°C, clear, colorless
Anion Traces: chloride (Cl-): ≤50 mg/kg; thiosulfate (S2O32-): ≤200 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; K: ≤200 mg/kg; Li: ≤5 mg/kg; Mg: ≤5 mg/kg; Mn: ≤5 mg/kg; Mo: ≤5 mg/kg; Ni: ≤5 mg/kg; Pb: ≤5 mg/kg; Sr: ≤5 mg/kg; Zn: ≤5 mg/kg
Absorption: absorption1M/265 nm, H2O cut-off