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Safety Information

431494

Sigma-Aldrich

Sodium thiosulfate pentahydrate

≥99.99%, ReagentPlus®

Synonym(s):

Disodium thiosulphate pentahydrate, Thiosulfuric acid, disodium salt, pentahydrate

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About This Item

Linear Formula:
Na2S2O3 · 5H2O
CAS Number:
Molecular Weight:
248.18
EC Number:
MDL number:
UNSPSC Code:
12352302

product line

ReagentPlus®

Assay

≥99.99%

impurities

≤0.002% N compounds
≤0.005% insolubles
<100 ppm total metallic impurities

pH

6.0-8.4

anion traces

S2-: passes test
SO42- and SO32-: ≤0.1%

SMILES string

O.O.O.O.O.[Na+].[Na+].[O-]S([O-])(=O)=S

InChI

1S/2Na.H2O3S2.5H2O/c;;1-5(2,3)4;;;;;/h;;(H2,1,2,3,4);5*1H2/q2*+1;;;;;;/p-2

InChI key

PODWXQQNRWNDGD-UHFFFAOYSA-L

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Application

Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes.

Features and Benefits

Meets A.C.S. reagent specifications.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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Fred B. Stocker et al.
Inorganic chemistry, 38(5), 984-991 (2001-10-24)
A new synthetic procedure developed recently in our laboratories has made possible the synthesis of variety of new complexes of CuCN with diamines. Synthesis was effected by adding the ligand to a solution of CuCN in aqueous sodium thiosulfate. This
Simran Kaur et al.
Journal of food protection, 78(9), 1708-1718 (2015-09-01)
Previous studies show that treatment of cantaloupes with chlorine dioxide (ClO2) gas at 5 mg/liter for 10 min results in a significant reduction (P < 0.05) in initial microflora, an increase in shelf life without any alteration in color, and

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