Sodium Thiosulfate

Product Introduction

Sodium Thiosulfate (Na₂S₂O₃), commonly known as hypo, is an important inorganic compound usually used in its pentahydrate form. It appears as a white crystalline powder and is widely used in photographic fixing and other industrial processes.

Product Information

• Chemical Formula: Na₂S₂O₃
• Molecular Weight: 158.11 (Anhydrous), 248.18 (Pentahydrate)
• CAS Number: 7772-98-7
• Melting Point: Not specified
• Appearance: White crystalline powder (anhydrous) or white granular form (pentahydrate)

Application

Industrial Applications: Used as a photographic fixer, dechlorination agent in water treatment, and in textile processing. Medical: Sometimes used as an antidote for cyanide poisoning.

Packaging and Storage

Packaging

Usually packaged in sealed containers to prevent moisture absorption.

Storage

Store in a cool, dry, and well-ventilated area, away from direct sunlight and moisture.

Transportation

Ensure packaging integrity before shipment and use dedicated transport to maintain product stability.

Summary

Sodium Thiosulfate is a key chemical in photography, water treatment, and textile processing. Its effectiveness depends on proper packaging, storage, and transportation to protect it from moisture.