217263

Sodium thiosulfate

ReagentPlus^®, 99%

• Linear Formula: Na₂S₂O₃
• CAS Number: 7772-98-7
• Molecular Weight: 158.11
• EC Number: 231-867-5
• MDL number: MFCD00003499
• UNSPSC Code: 12352302
• PubChem Substance ID: 329752199
• NACRES: NA.21
• grade: reagent
• form: powder, crystals or chunks

Properties

• grade: reagent
• Quality Level: 200
• product line: ReagentPlus^®
• Assay: 99%
• form: powder, crystals or chunks
• pH: 6.0-8.5 (20 °C, 50 g/L)
• SMILES string: [Na+].[Na+].[O-]S([O-])(=O)=S
• InChI: 1S/2Na.H2O3S2/c;;1-5(2,3)4/h;;(H2,1,2,3,4)/q2*+1;/p-2
• InChI key: AKHNMLFCWUSKQB-UHFFFAOYSA-L

Description

General description

Sodium thiosulfate is an inorganic salt composed of thiosulfate and sodium ion with the chemical formula Na₂S₂O₃. It is general reducing agent and useful sulfur source in synthetic chemistry

Application

Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes.

Sodium thiosulfate can be used as a

• Component in the synthesis of unsymmetrical aryl sulfides under aqueous conditions, where C–S–C bond formed in presence of other two components (alcohols and organohalides).
• Reagent for the activation of carbon material.
• Reagent in the synthesis of S-glycosyl thiosulfates (glycosyl bunte salts) by direct condensation of unprotected sugars using dehydrating agent DMC (2-chloro-1,3-dimethylimidazolinium chloride) in water-acetonitrile solvent mixture.
• Reagent with alkyl halide in the synthesis of Bunte salts by SN₂ mechanism using Cu catalyst.
• Reagent in the synthesis of aryl thiols from aryl halides by palladium catalyzed cross-coupling reaction.

Features and Benefits

Sodium thiosulfate is:

• Stable
• Environmentally friendly
• Odorless
• Inexpensive.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable