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Sodium thiosulfate pentahydrate, ACS, 99.5-101.0%, Thermo Scientific Chemicals

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)

Supplier:  Thermo Scientific Chemicals 01451836

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Catalog No. AA1451836



Description

Description

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.

Specifications

Specifications

100°C-5H{2}O
48°C
10102-17-7
Crystalline
99.5-101.0%
MFCD00149186
Soluble in water and ammonia. Insoluble in alcohol and organic solvents.
O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
248.172
CHEBI:32150
ACS
Colorless crystalline
Sodium thiosulfate pentahydrate
For ACS analysis
Colorless
500 g
H10Na2O8S2
sodium thiosulfate pentahydrate, ametox, sodium thiosulfate, pentahydrate, antichlor, tinver, disodium thiosulfate pentahydrate, unii-hx1032v43m, ccris 3952, thiosulfuric acid, disodium salt, pentahydrate, sodium hyposulfite pentahydrate
PODWXQQNRWNDGD-UHFFFAOYSA-L
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
61475
248.17 (158.10 Anhydrous)
Odorless
1.69 g/cm3

Chemical Identifiers

10102-17-7
248.172
PODWXQQNRWNDGD-UHFFFAOYSA-L
61475
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
H10Na2O8S2
MFCD00149186
sodium thiosulfate pentahydrate, ametox, sodium thiosulfate, pentahydrate, antichlor, tinver, disodium thiosulfate pentahydrate, unii-hx1032v43m, ccris 3952, thiosulfuric acid, disodium salt, pentahydrate, sodium hyposulfite pentahydrate
CHEBI:32150
O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
Safety and Handling

Safety and Handling

H500

EINECSNumber : 231-867-5

RTECSNumber : WE6660000

TSCA : Yes

Recommended Storage : Ambient temperatures

SDS
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