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Sodium Thiosulfate, 0.01M, Chem-Lab

Catalog Number 11915517
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1 L
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This item is not returnable. View return policy

Used as a redox titrant in iodometry for TMAR chlorine determination according to SERES. Sodium Thiosulfate, 0.01M, Chem-Lab is a solution of 2.482g Na2S2O3•5H2O per 1L H2O. It is an inorganic compound with an excellent shelf life.

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.
Boiling Point 100°C
Melting Point 48.3°C
CAS 10102-17-7, 7732-18-5
Physical Form Liquid
Quantity 1 L
Molecular Formula H10Na2O8S2
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
Solubility Information Soluble in water
SMILES O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
IUPAC Name disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
Molecular Weight (g/mol) 248.172
PubChem CID 61475
Formula Weight 248.18g/mol
Concentration or Composition (by Analyte or Components) 0.01mol/L
Density 1.00g/mL
Chemical Name or Material Sodium Thiosulfate Pentahydrate
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