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abs.
|
absorption1M/289 nm, H2O cut-off
|
|
Antion Traces
|
chloride (Cl-): ≤50 mg/kg
|
|
Antion Traces
|
sulfate, sulfite (as SO42-): ≤500 mg/kg
|
|
Antion Traces
|
sulfide (S2-): ≤1 mg/kg
|
|
Cation Traces
|
Al: ≤5 mg/kg
|
|
Cation Traces
|
Ba: ≤5 mg/kg
|
|
Cation Traces
|
Bi: ≤5 mg/kg
|
|
Cation Traces
|
Ca: ≤10 mg/kg
|
|
Cation Traces
|
Cd: ≤5 mg/kg
|
|
Cation Traces
|
Co: ≤5 mg/kg
|
|
Cation Traces
|
Cr: ≤5 mg/kg
|
|
Cation Traces
|
Cu: ≤5 mg/kg
|
|
Cation Traces
|
Fe: ≤5 mg/kg
|
|
Cation Traces
|
K: ≤50 mg/kg
|
|
Cation Traces
|
Li: ≤5 mg/kg
|
|
Cation Traces
|
Mg: ≤5 mg/kg
|
|
Cation Traces
|
Mn: ≤5 mg/kg
|
|
Cation Traces
|
Mo: ≤5 mg/kg
|
|
Cation Traces
|
Ni: ≤5 mg/kg
|
|
Cation Traces
|
Pb: ≤5 mg/kg
|
|
Cation Traces
|
Sr: ≤5 mg/kg
|
|
Cation Traces
|
Zn: ≤5 mg/kg
|
|
Impurities
|
insoluble matter, passes filter test
|
|
Impurities
|
≤0.002% total nitrogen (N)
|
|
Linear Formula
|
Na2S2O3 · 5H2O
|
|
Product Line
|
BioUltra
|
|
Purity
|
≥99.5% (RT)
|
|
Quality
|
crystallized
|
|
pH
|
6.0-7.5 (25 °C, 1 M in H2O)
|
|
Solubility
|
H2O: soluble1 M at 20 °C, clear, colorless
|
|
MSDS Link
|
Download
|
|
Personal Protective Equipment
|
Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
|
|
German water hazard class
|
1
|