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Sodium thiosulfate pentahydrate, ACS, 99.5-101.0%, Thermo Scientific Chemicals Product Code.: 11372468
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Sodium thiosulfate pentahydrate, ACS, 99.5-101.0%, Thermo Scientific Chemicals

Product Code. 11372468
500 g
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Quantity:
500 g
2 kg
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Product Code. 11372468

Brand: Thermo Scientific Alfa Aesar 014518.36

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Description

Maximum level of impurities: Insoluble matter 0.005%, pH of a 5% solution 6.0-8.4 at 25°, Nitrogen compounds (as N) 0.002%, Sulfate and sulfite (as SO4) 0.1%, Sulfide P.T. (limit about 1ppm)

Sodium thiosulfate pentahydrate is used as an analytical reagent in laboratories. It is used in photographic processing and in gold extraction. Its alkylated derivatives, S-alkylthiosulfonates, are known as Bunte salts. It is involved in the preparation of thioglycolic acid. Furthermore, it is used to dechlorinate tap water, for removing free bromine from solutions and to check the pH of bleach solutions with liquid indicators. Other uses include tanning of leather; as an active component in hand warmers and chemical heating pads and as an anionic surfactant to aid in the dispersion of pharmaceutical preparations.

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.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 10102-17-7
Molecular Formula H10Na2O8S2
Molecular Weight (g/mol) 248.172
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 pentahydrateShow MoreShow Less
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-5H{2}O
Melting Point 48°C
Color Colorless
Physical Form Crystalline
Quantity 500 g
Assay Percent Range 99.5-101.0%
Solubility Information Soluble in water and ammonia. Insoluble in alcohol and organic solvents.
Formula Weight 248.17 (158.10 Anhydrous)
Grade ACS
Odor Odorless
Appearance Colorless crystalline
Density 1.69 g/cm3
Chemical Name or Material Sodium thiosulfate pentahydrate, For ACS analysis
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Certificates

Certificates

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5 results found
Lot Number Certificate Type Date Catalog Number
Lot NumberM03L010 Certificate TypeCertificate of Analysis Date06/01/2025 Catalog Number014518.36,014518.A3
Lot NumberT16K019 Certificate TypeCertificate of Analysis Date23/07/2024 Catalog Number014518.36,014518.A3
Lot NumberZ04J045 Certificate TypeCertificate of Analysis Date15/12/2023 Catalog Number014518.36,014518.A3
Lot NumberM27J018 Certificate TypeCertificate of Analysis Date02/02/2023 Catalog Number014518.36,014518.A3
Lot NumberQ19I006 Certificate TypeCertificate of Analysis Date23/01/2023 Catalog Number014518.36,014518.A3

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