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Sodium Thiosulfate, Pentahydrate, Crystals

High-purity sodium thiosulfate crystals for industrial applications.
SKU: HYPO5
Qty:

Sodium Thiosulfate, Pentahydrate, Crystals

Sodium Thiosulfate, Pentahydrate, Reagent, ACS grade, also known as Sodium Hyposulfite (Na2S2O3•5H2O), is a high-purity chemical used across a variety of industries. With a molecular weight of 248.19, its primary applications include photographic fixer, chrome tanning, water dechlorination, silver extraction, bleaching, and iodometry. Additionally, it serves as a reagent, mordant, and reducing agent in dyeing processes. Its white crystalline appearance and >99% purity ensure reliable performance in technical and industrial uses.


Specifications

Chemical Formula Na2S2O3•5H2O
Molecular Weight 248.19
Purity > 99%
Appearance White crystals
Iron < 10 ppm
Heavy Metals < 6 ppm
Insoluble Matter < 0.02%
CAS# 10102-17-7

Applications and Benefits:

  • Photographic fixer
  • Chrome tanning
  • Water dechlorination
  • Silver extraction from ores
  • Bleaching and paper making
  • Reducing agent in chrome dyeing
  • Reagent for iodometry
  • Making colloidal sulfur
  • Mordant for textiles

Caution:

Handle with care. Review the Material Safety Data Sheet (MSDS) for safety instructions and best practices before use.

  • Availability: In Stock
  • Model: HYPO5
  • Brand: ChemicalStore