Sodium Thiosulphate Pentahydrate 99% Extrapure

  • CAS :
    10102-17-7
  • REF :
    26567
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QUANTITY PRICE ENQUIRY
500 gm Rs 180.00
5 kg Rs 1510.00

Product Information

  • Formula: Na₂S₂O₃ • 5H₂O
  • CAS: 10102-17-7
  • EC No.: 231-867-5
  • M (Molar Mass): 248.18 g/mol
  • D (Density): 1.69 g/cm³
  • mp (Melting Point): 48°C (decomposes)

Chemicals Properties

  • Assay (Iodometric): ≥ 99.0 %
  • Appearance: Large colorless crystals or white crystalline powder.
  • pH (5% solution): 6.0 - 8.5
  • Insoluble Matter: ≤ 0.005 %
  • Loss on Drying (40-45°C): 35.0 - 37.0 % (theoretical ~36.3%)
  • Sulfite & Sulfide (as SO₂): ≤ 0.01 %
  • Heavy Metals (as Pb): ≤ 0.001 %
  • Iron (Fe): ≤ 0.001 %

Hazard Information

  • Hazard: Not classified as hazardous.
  • Safety: For laboratory use only.
  • Storage: Store in a cool, dry place. Protect from light and moisture.