Sodium Thiosulphate

Product Description

Sodium Thiosulphate (Na₂S₂O₃·5H₂O) is a colorless crystalline inorganic compound widely used as a reducing and titrimetric reagent in analytical chemistry. It serves as a standard solution in iodometric titrations and is essential for determining chlorine, iodine, and copper concentrations.

In laboratories and industries, Sodium Thiosulphate is valued for its stability, purity, and accuracy in volumetric analysis. It is also used in photography (fixer solution), water treatment, and medical applications as an antidote for cyanide poisoning.

Key Features

• Chemical Name: Sodium Thiosulphate Pentahydrate
  • Chemical Formula: Na₂S₂O₃·5H₂O
  • CAS Number: 10102-17-7
  • Molecular Weight: 248.18 g/mol
  • Appearance: Colorless, transparent crystals or crystalline powder
  • Purity: ≥99% (Analytical Reagent Grade)
  • Solubility: Freely soluble in water; insoluble in alcohol
  • Odor: Odorless
  • pH (5% solution): ~7.0–9.0 (neutral to slightly alkaline)
  • Stability: Stable under normal conditions; decomposes on heating

Applications

Laboratory & Research

• Widely used as a titrant in iodometric analysis (e.g., chlorine and iodine estimation).
  • Used in volumetric analysis for oxidation-reduction titrations.
  • Serves as a reducing agent in analytical chemistry.
  • Applied in educational and research laboratories for standardization studies.

Industrial Uses

• Used in photography as a fixer to dissolve undeveloped silver halides.
  • Applied in water purification to neutralize excess chlorine.
  • Serves as an antidote for cyanide poisoning in medical use (under supervision).
  • Utilized in textile, leather, and paper industries for bleaching and dechlorination.

Safety & Handling

• Hazard: Generally low toxicity; may cause mild irritation to eyes or skin.
  • Precautions: Handle with protective gloves and goggles. Avoid contact with strong acids (releases sulfur dioxide gas).
  • Storage: Store in a tightly sealed container in a cool, dry place, away from heat and moisture.
  • Disposal: Dispose of according to local environmental and laboratory regulations.

Why Choose Sodium Thiosulphate from M/S Bright Scientific Co.?

• High-purity Analytical Reagent Grade for precise analytical use.
  • Tested and Certified Quality for laboratory and industrial applications.
  • Reliable Supply for academic, pharmaceutical, and industrial sectors.
  • Secure Packaging ensures long-term product stability.
  • Competitive Pricing with bulk order options.
  • Nationwide Delivery – fast, safe, and dependable across Bangladesh.

Price in Bangladesh

Available in 100 g, 250 g, 500 g, and 1 kg packs at competitive prices.
Bulk discounts available for universities, research laboratories, and industries.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976