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  7. Sodium thiosulfate, 98.5%, extra pure, anhydrous

Sodium thiosulfate, 98.5%, extra pure, anhydrous

Catalog No. p-4509852
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Quantity:
500 g
1 kg
2.5 kg
Packaging:
Plastic bottle
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Catalog No. Quantity Packaging
AC202875000 500 g Plastic bottle
AC202870010 1 kg Plastic bottle
AC202870025 2.5 kg Plastic bottle
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Catalog No. AC202875000 Supplier Thermo Scientific Chemicals Supplier No. 202875000
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Description

CAS: 7772-98-7 | Na2O3S2 | 158.10 g/mol

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

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 500 g
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 bottle
Chemical Name or Material Sodium thiosulfate
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Safety and Handling

EINECSNumber 231-867-5

RUO – Research Use Only