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  7. Sodium thiosulfate pentahydrate, 99+%

Sodium thiosulfate pentahydrate, 99+%

Catalog No. AAA1791436
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Catalog No. Quantity
AAA1791436 500 g
AAA179140E 2500 g
AAA179140C 10,000 g
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Catalog No. AAA1791436

Supplier: Thermo Scientific Chemicals A1791436

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Description

CAS: 10102-17-7 | H10Na2O8S2 | 248.172 g/mol

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

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

Solubility
Soluble in water. Insoluble in alcohol.

Notes
Incompatible with sodium nitrate, acids, strong oxidizing agents, iodides, silver salts, mercury salts and lead.

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 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 (in -5H2O)
Melting Point 48°C
pH 6.5 to 8.0
Quantity 500 g
Linear Formula Na2S2O3·5H2O
Merck Index 14,8694
Solubility Information Soluble in water. Insoluble in alcohol.
Formula Weight 248.17 (158.10 Anhydrous)
Percent Purity ≥99%
Odor Odorless
Density 1.69
Chemical Name or Material Sodium thiosulfate pentahydrate
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Safety and Handling

Hazard Category H500
EINECSNumber 231-867-5
RTECSNumber WE6660000
TSCA Yes
Recommended Storage Ambient temperatures

RUO – Research Use Only