Sodium thiosulfate pentahydrate, 99.5%, for analysis, Thermo Scientific Chemicals

Description

Reduction reagent

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Reduction reagent for analysis

Specifications

Chemical Identifiers

• CAS: 10102-17-7
• Molecular Formula: Na₂O₃S₂·₅H₂O
• Molecular Weight (g/mol): 248.18
• MDL Number: MFCD00149186
• InChI Key: PODWXQQNRWNDGD-UHFFFAOYSA-L
• Synonym: sodium thiosulfate pentahydrate, ametox, sodium thiosulfate, pentahydrate, antichlor, tinver, disodium thiosulfate pentahydrate, unii-hx1032v43m, ccris 3952, thiosulfuric acid, disodium salt, pentahydrate, sodium hyposulfite pentahydrate
• PubChem CID: 61475
• ChEBI: CHEBI:32150
• IUPAC Name: disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
• SMILES: O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]

• Melting Point: 48.5°C
• Color: White
• pH: 6 to 8.4 (5% soln. at 25°C)
• Physical Form: Crystals
• Quantity: 2.5 kg
• Assay Percent Range: 99.5 to 101% (Iodimetry)
• Linear Formula: Na₂S₂O₃·5H₂O
• Merck Index: 15, 8821
• Solubility Information: Solubility in water: 680g/L (20°C). Other solubilities: practically insoluble in alcohol, soluble in turpentine
• Formula Weight: 248.18
• Percent Purity: 99.5%
• Grade: Analytical
• Packaging: Plastic Bottle
• Specific Gravity: 1.72
• Decomposition Information: >45°C
• Density: 1.7200g/mL
• Chemical Name or Material: Sodium thiosulfate pentahydrate

RUO – Research Use Only