Sodium Thiosulfate Pentahydrate, also known as Disodium Sulfurothioate Pentahydrate, and Sodium Hyposulfite Pentahydrate is a hydrate of Sodium Thiosulfate with 5 mol eq. of Water. having the chemical formula H₁₀Na₂O₈S₂ or Na₂S₂O₃-5H₂O. It appears as colorless to white hygroscopic crystals, chunks, or crystalline powder with no odor. It is sparingly soluble in Water and insoluble in Alcohol at ambient conditions. When heated to around 300 o C, it undergoes decomposition emitting highly toxic fumes of Disodium Oxide and Sulfur Oxides. Commercially, it is produced by reacting by-product liquid of Sodium Sulfide synthesis with Sulfur Dioxide. Chemically pure or Laboratory reagents are the two terms often used to describe Lab Grade chemicals. Lab Grade chemicals do not meet any accepted quality or purity requirements such as the ACS Grade, the USP Grade, and the FCC Grade, despite their acceptable purity. In the United States of America (USA), Lab Alley is selling its high-quality Sodium Thiosulfate, Anhydrous,Lab Grade online at laballey.com. Due to its high purity, this Lab Alley product is highly recommended for labs and commercial applications.

Sodium Thiosulfate Crystal Pentahydrate Features:

• Reagent
• Chemical precursor
• Chemical analysis

• Tanning of leather
• Photographic processing
• Synthesis of dyes

Please contact us to request a Safety Data Sheet (SDS) and Certificate of Analysis (COA) for Sodium Thiosulfate Crystal Pentahydrate Lab grade.