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217247

Sigma-Aldrich

Sodium thiosulfate pentahydrate

ACS reagent, ≥99.5%

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About This Item

Formula condensata:
Na2S2O3 · 5H2O
Numero CAS:
10102-17-7
Peso molecolare:
248.18
Numero CE:
231-867-5
Numero MDL:
MFCD00149186
Codice UNSPSC:
12352302
ID PubChem:
329752198
NACRES:
NA.21

Grado

ACS reagent

agenzia

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

Saggio

≥99.5%

Forma fisica

crystalline powder
crystals
pellets

Impurezze

≤0.002% N compounds
≤0.005% insolubles

pH

6.0-8.4 (25 °C, 5%)

Solubilità

water: soluble(lit.)

Anioni in tracce

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

Cationi in tracce

N: ≤0.002%

Stringa SMILE

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
PODWXQQNRWNDGD-UHFFFAOYSA-L

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Categorie correlate

Descrizione generale

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

Applicazioni

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.

Caratteristiche e vantaggi

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

Codice della classe di stoccaggio

13 - Non Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Certificati d'analisi (COA)

Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.

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Sodium thiosulfate

Nuclear magnetic resonance in sodium thiosulfate pentahydrate.
Murty CRK and El Saffar ZM.
Acta Crystallographica, 15(6), 536-538 (1962)
Sodium thiosulfate pentahydrate: a redetermination by neutron diffraction.
Lisensky GC and Levy HA.
Acta Crystallographica Section B, Structural Science, Crystal Engineering and Materials, 34(6), 1975-1977 (1978)
Fingerprint imaging by scanning electrochemical microscopy.
Zhang M and Girault HH.
Electrochemical Communications, 9(7), 1778-1782 (2007)
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
Michael C Reade et al.
Emergency medicine Australasia : EMA, 24(3), 225-238 (2012-06-08)
Cyanide poisoning is uncommon, but generates interest because of the presumed utility of an antidote immediately available in those areas with a high risk of cyanide exposure. As part of its regular review of guidelines, the Australian Resuscitation Council conducted
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