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

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.