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Sodium Thiosulfate, 0.1M, Chem-Lab

Product Code. 10080432
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Product Code. 10080432 Supplier Chem-Lab Supplier No. CL05.1429.1000

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Description

Used as a redox titrant according to ASTM D-1159 standards. Sodium Thiosulfate, 0.1M, Chem-Lab is a solution of 24.8148g Na2S2O3·5H2O per 1L H2O. It is an inorganic compound with an excellent shelf life for use in iodometry, especially for chlorine determination.

The thiosulfate anion reacts stoichiometrically with iodine in aqueous solution. Due to the quantitative nature of this reaction, sodium thiosulfate is used as a redox titrant in volumetric analysis and is a component of iodine clock experiments. It can be used to measure the oxygen content of water and to estimate the concentration of certain compounds in solution (hydrogen peroxide, chlorine). It also has many medicinal uses.

Chemical Identifiers

CAS 10102-17-7 , 7732-18-5
Molecular Formula H10Na2O8S2
Molecular Weight (g/mol) 248.172
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+]

Specifications

Boiling Point 100°C
Melting Point 48.3°C
Physical Form Liquid
Quantity 1 L
Solubility Information Soluble in water
Formula Weight 248.18g/mol
Concentration or Composition (by Analyte or Components) 0.1mol/L
Density 1.00g/mL
Chemical Name or Material Sodium Thiosulfate Pentahydrate
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