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Alfa Aesar™ Sodium thiosulfate, anhydrous, 99%

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Quantity:
500g
2500g
7772-98-7
Na2O3S2
158.097
MFCD00003499
AKHNMLFCWUSKQB-UHFFFAOYSA-L
sodium thiosulfate,sodium thiosulphate,disodium thiosulfate,sodium thiosulfate anhydrous,hypo,sodiumthiosulfate,chlorine cure,chlorine control,declor-it,thiosulfuric acid, disodium salt
24477
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane
[O-]S(=O)(=S)[O-].[Na+].[Na+]
7772-98-7
Na2O3S2
158.097
MFCD00003499
AKHNMLFCWUSKQB-UHFFFAOYSA-L
sodium thiosulfate,sodium thiosulphate,disodium thiosulfate,sodium thiosulfate anhydrous,hypo,sodiumthiosulfate,chlorine cure,chlorine control,declor-it,thiosulfuric acid, disodium salt
24477
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane
[O-]S(=O)(=S)[O-].[Na+].[Na+]
Applications
Sodium thiosulfate is used in volumetric analysis to estimate the concentration of certain compounds in solution (hydrogen peroxide) as well as chlorine content in bleaching powder and water. It is used to prepare S-alkylthiosulfonates. Furthermore, it is used in the tanning of leather and in photographic processing. It is used as an antidote to cyanide poisoning and acts as a safe disposal medium in chemistry laboratories when working with bromine, iodine and other strong oxidizers. It is an important component in hand warmers and heating pads.

Solubility
Soluble in water. Insoluble in alcohol.

Notes
Hygroscopic. Incompatible with strong acids, strong oxidizing agents, iodine and mercury.
Linear Formula Na2S2O3
Merck Index 14,8694
Solubility Information Soluble in water. Insoluble in alcohol.
Formula Weight 158.1
Percent Purity 99%
Density 1.667
Odor Odorless
Sensitivity Hygroscopic
Quantity 500g
Chemical Name or Material Sodium thiosulfate, anhydrous

EINECSNumber : 231-867-5

RTECSNumber : XN6476000

TSCA : Yes

Recommended Storage : Ambient temperatures