Sodium thiosulfate pentahydrate

• Catalog No.: 31459
• CAS Number: 10102-17-7
• M. F.: H10Na2O8S2
• M. W.: 248.18414
• Purity: ≥99.5%

SYNONYMS

• Title: 硫代硫酸钠 五水合物
• IUPAC name: disodium 1-oxo-1λ^6-disulfene-1,1-bis(olate) pentahydrate
• IUPAC Traditional name: disodium hypo pentahydrate

DATABASE IDS

• EC Number: 231-867-5
• PubChem SID: 24858966
• CAS Number: 10102-17-7
• MDL Number: MFCD00149186

PROPERTIES

• Antion Traces: chloride (Cl-): ≤100 mg/kg
• Antion Traces: sulfate, sulfite (as SO42-): ≤1000 mg/kg
• Antion Traces: sulfide (S2-): ≤1 mg/kg
• Cation Traces: Ca: ≤20 mg/kg
• Cation Traces: Cu: ≤5 mg/kg
• Cation Traces: Fe: ≤5 mg/kg
• Cation Traces: K: ≤10 mg/kg
• Cation Traces: Mg: ≤10 mg/kg
• Cation Traces: Pb: ≤5 mg/kg
• Grade: ACS reagent, reag. ISO, reag. Ph. Eur.
• Grade: puriss. p.a.
• Impurities: ≤0.002% total nitrogen (N)
• Linear Formula: Na2S2O3 · 5H2O
• Purity: ≥99.5%
• pH: 6.0-7.5 (25 °C, 5%)
• pH: 6.0-8.4 (20 °C, 10%)
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• German water hazard class: 1