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Sodium thiosulfate, 98.5%, extra pure, anhydrous, Thermo Scientific Chemicals

Product Code. 11331790
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Quantity:
500 g
1 kg
2.5 kg
10 kg
Packaging:
Plastic bottle
Plastic drum

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. Some documentation and label information may refer to the legacy brand. The original Acros Organics product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Reduction reagent
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 7772-98-7
Molecular Formula Na2O3S2
Molecular Weight (g/mol) 158.10
MDL Number MFCD00003499
InChI Key AKHNMLFCWUSKQB-UHFFFAOYSA-L
Synonym sodium thiosulfate, sodium thiosulphate, disodium thiosulfate, sodium thiosulfate anhydrous, hypo, sodiumthiosulfate, chlorine cure, chlorine control, declor-it, thiosulfuric acid, disodium salt
PubChem CID 24477
SMILES [Na+].[Na+].[O-]S([S-])(=O)=O

Specifications

Melting Point 48.0°C
Color White
pH 6.0 to 8.5 (5% soln. at 20°C)
Physical Form Crystalline Powder
Quantity 10 kg
Assay Percent Range 98% min. (on dry substance) (Iodimetry)
Linear Formula Na2S2O3
Merck Index 15,8821
Solubility Information Solubility in water: 700g/L (20°C). Other solubilities: practically insoluble in alcohol
IUPAC Name disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane
Formula Weight 158.1
Percent Purity 98.5%
Grade Extra Pure
Loss on Drying 2% (105°C, 2 hrs) max.
Packaging Plastic drum
Chemical Name or Material Sodium thiosulfate
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