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Sodium thiosulfate pentahydrate, 99+%, extra pure, Thermo Scientific™

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Quantity:
1kg
2.5kg
25kg
Packaging:
Fibre drum
Plastic bottle
10102-17-7
Na2O3S2·5H2O
248.18
MFCD00149186
PODWXQQNRWNDGD-UHFFFAOYSA-L
sodium thiosulfate pentahydrate, ametox, sodium thiosulfate, pentahydrate, antichlor, tinver, disodium thiosulfate pentahydrate, unii-hx1032v43m, ccris 3952, thiosulfuric acid, disodium salt, pentahydrate, sodium hyposulfite pentahydrate
61475
CHEBI:32150
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]
10102-17-7
Na2O3S2·5H2O
248.18
MFCD00149186
PODWXQQNRWNDGD-UHFFFAOYSA-L
sodium thiosulfate pentahydrate, ametox, sodium thiosulfate, pentahydrate, antichlor, tinver, disodium thiosulfate pentahydrate, unii-hx1032v43m, ccris 3952, thiosulfuric acid, disodium salt, pentahydrate, sodium hyposulfite pentahydrate
61475
CHEBI:32150
disodium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane;pentahydrate
O.O.O.O.O.[O-]S(=O)(=S)[O-].[Na+].[Na+]

This Thermo Scientific 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.

Reduction reagent
Assay Percent Range 99.0 to 101% (Iodimetry)
Linear Formula Na2S2O3·5H2O
Merck Index 15, 8821
Solubility Information Solubility in water: 680g/L (20°C). Other solubilities: practically insoluble in alcohol,soluble in turpentine
Formula Weight 248.18
Physical Form Crystals
Percent Purity 99+%
Grade Extra Pure
Calcium (Ca) 50ppm max.
Chloride 500ppm max
Chlorine (Cl) 500ppm max.
Density 1.7200g/mL
Iron (Fe) 10ppm max.
Lead (Pb) 5ppm max.
Packaging Plastic bottle
Solubility Solubility in water: 680g/L (20°C). Other solubilities: practically insoluble in alcohol, soluble in turpentine
Specific Gravity 1.72
Sulfate and Sulfite 0.2% max.
Sulfur (S) 5ppm max.
Color Colorless to White
Melting Point 48.5°C
pH 6 to 8.4 (10% soln. at 20°C)
Quantity 2.5kg
Chemical Name or Material Sodium thiosulfate pentahydrate
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