Sodium thiosulfate pentahydrate, 99+%, extra pure, ACROS Organics™

Brand:  Acros Organics 123370250

Product Code. 10003573

Chemical Identifiers

• Chemical Name or Material: Sodium thiosulfate pentahydrate
• Purity Grade: Extra Pure
• Assay Percent Range: 99+%
• Linear Formula: Na₂S₂O₃·5H₂O
• MDL Number: MFCD00149186

• CAS: 10102-17-7
• Assay: ≥99%
• Molecular Formula: Na₂O₃S₂·₅H₂O
• Formula Weight: 248.18

Specifications

• Chemical Name or Material: Sodium thiosulfate pentahydrate
• Purity Grade: Extra Pure
• Assay: ≥99%
• Molecular Formula: Na₂O₃S₂·₅H₂O
• Formula Weight: 248.18
• Merck Index: 15, 8821
• Chlorine (Cl): 500ppm max.
• Iron (Fe): 10ppm max.
• Packaging: Fibre drum
• Specific Gravity: 1.72
• Sulfur (S): 5ppm max.
• Melting Point: 48.5°C
• Quantity: 25kg

• CAS: 10102-17-7
• Physical Form: Crystals
• Assay Percent Range: 99+%
• Linear Formula: Na₂S₂O₃·5H₂O
• MDL Number: MFCD00149186
• Calcium (Ca): 50ppm max.
• Density: 1.7200g/mL
• Lead (Pb): 5ppm max.
• Solubility: Solubility in water: 680g/L (20°C). Other solubilities: practically insoluble in alcohol, soluble in turpentine
• Sulfate and Sulfite: 0.2% max.
• Color: Colorless to white
• pH: 6 to 8.4 (10% soln. at 20°C)