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909173

Sigma-Aldrich

Sodium thiosulfate

free-flowing, Redi-Dri, ReagentPlus®, 99%

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Linear Formula:
Na2S2O3
CAS Number:
Molecular Weight:
158.11
MDL number:

grade

anhydrous

Agency

suitable for EPA 601

product line

ReagentPlus®
Redi-Dri

Assay

99%

form

powder

quality

free-flowing

pH

6-8.5 (20 °C, 50 g/L)

SMILES string

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

InChI

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

Inchi Key

AKHNMLFCWUSKQB-UHFFFAOYSA-L

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This Item
2172631.0651272049
Sodium thiosulfate free-flowing, Redi-Dri™, ReagentPlus®, 99%

Sigma-Aldrich

909173

Sodium thiosulfate

Sodium thiosulfate ReagentPlus®, 99%

Sigma-Aldrich

217263

Sodium thiosulfate

Sodium thiosulfate anhydrous EMPLURA®

Supelco

1.06512

Sodium thiosulfate

Sodium thiosulfate purum p.a., anhydrous, ≥98.0% (RT)

Sigma-Aldrich

72049

Sodium thiosulfate

assay

99%

assay

99%

assay

≥97.0% (iodometric)

assay

≥98.0% (RT)

form

powder

form

powder, crystals or chunks

form

solid

form

crystals

pH

6-8.5 (20 °C, 50 g/L)

pH

6.0-8.5 (20 °C, 50 g/L)

pH

6.0-9.5 (20 °C, 50 g/L in H2O)

pH

6.0-8.5 (25 °C, 50 mg/mL in H2O)

product line

ReagentPlus®

product line

ReagentPlus®

product line

EMPLURA®

product line

-

quality

free-flowing

quality

-

quality

-

quality

-

General description

Sodium thiosulfate (Na2S2O3) can be obtained from Na2S2O3.10H2O by heating above 100 °C. It can be synthesized from sodium sulfate.

Application

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

Sodium thiosulfate (Na2S2O3) may be used in the following studies:
  • Industrial synthesis of methylene blue.
  • Quantitative estimation of elemental iodine by titrimetry.
  • Detection of trace levels of cysteine by employing triangular silver nanoplates (TAg-NPs).
Redi-Dri is an innovative packaging product line that helps eliminate clumping material by adding extra packaging process steps without any chemical additives, anti-clumping agents, or hydrophobic compounds. Redi Dri offers a more convenient and safer way to handle the products.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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