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217247

Sodium thiosulfate pentahydrate

Name: Sodium thiosulfate pentahydrate
Brand: SIGALD

ACS reagent, ≥99.5%

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About This Item

Linear Formula:

Na₂S₂O₃ · 5H₂O

CAS Number:

10102-17-7

Molecular Weight:

248.18

NACRES:

NA.21

PubChem Substance ID:

329752198

UNSPSC Code:

12352302

EC Number:

231-867-5

MDL number:

MFCD00149186

Assay:

≥99.5%

Grade:

ACS reagent

Form:

crystalline powder, crystals, pellets

Solubility:

water: soluble(lit.)

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Properties

grade

ACS reagent

Quality Level

200

agency

suitable for EPA 1621, suitable for ISO 25101, suitable for SM 2310, suitable for SM 2320, suitable for SM 4500 - NH3

assay

≥99.5%

form

crystalline powder, crystals, pellets

impurities

≤0.002% N compounds, ≤0.005% insolubles

pH

6.0-8.4 (25 °C, 5%)

solubility

water: soluble(lit.)

anion traces

S^2-: passes test, SO₄^2- and SO₃^2-: ≤0.1%

cation traces

N: ≤0.002%

application(s)

PFAS testing

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

Description

General description

Sodium thiosulfate pentahydrate is a hydrated form of sodium thiosulfate. It is used as a sulfur source for the preparation of various organosulfur compounds.

Application

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

Sodium thiosulfate pentahydrate can be used as a sulfur source to synthesize:

Thioester derivatives via one-pot two-step reactions with organic halides and aryl anhydrides.
Sulfur nanoparticles using F. benghalensis leaf extract which acts as a reducing and capping agent.
Unsymmetrical heteroaryl thioethers via multicomponent reaction with heteroaryl chlorides and alcohols.

It can also be used in the fabrication of microencapsulated phase change materials for thermal energy storage applications.

Features and Benefits

Na₂S₂O₃ 5H₂O is a low toxic and odorless reagent that can be easily used in large-scale operations.

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Storage Class

13 - Non Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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Global Trade Item Number

SKU	GTIN
217247-2.5KG	04061838774811
217247-25G	04061838774828
217247-500G	04061837768620