Sodium thiosulfate, 0.1N Standardized Solution, Thermo Scientific Chemicals

Description

Sodium thiosulfate, 0.1N standardized solution is used in volumetric analysis to estimate the concentration of certain compounds in solution (hydrogen peroxide) as well as chlorine content in bleaching powder and water. It is used as a titrant in iodometry.

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

Specifications

Chemical Identifiers

• CAS: 7772-98-7
• Molecular Formula: Na2O3S2
• Molecular Weight (g/mol): 158.10
• MDL Number: MFCD00003499
• InChI Key: AKHNMLFCWUSKQB-UHFFFAOYSA-L
• Synonym: sodium thiosulfate, sodium thiosulphate, disodium thiosulfate, sodium thiosulfate anhydrous, hypo, sodiumthiosulfate, chlorine cure, chlorine control, declor-it, thiosulfuric acid, disodium salt
• PubChem CID: 24477
• SMILES: [Na+].[Na+].[O-]S([S-])(=O)=O

• Physical Form: Liquid
• Quantity: 1 L
• Solubility Information: Immiscible with alcohol.
• IUPAC Name: disodium sulfanidesulfonate
• Formula Weight: 158.1
• Concentration or Composition (by Analyte or Components): Sodium thiosulphate: 1.58%; Water: 98.42%
• Appearance: Clear liquid
• Vapor Pressure: 23 hPa (17mm Hg) at 20°C
• Chemical Name or Material: Sodium thiosulfate

Safety and Handling

EINECSNumber	231-867-5
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only