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216232

Sigma-Aldrich

Sodium persulfate

reagent grade, ≥98%

Synonym(s):

Sodium peroxodisulfate

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About This Item

Linear Formula:
Na2S2O8
CAS Number:
7775-27-1
Molecular Weight:
238.10
EC Number:
231-892-1
MDL number:
MFCD00003501
UNSPSC Code:
12352302
PubChem Substance ID:
329752185
NACRES:
NA.21

grade

reagent grade

Quality Level

200

Assay

≥98%

form

powder, crystals or granules

reaction suitability

reagent type: oxidant

SMILES string

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

InChI

1S/2Na.H2O8S2/c;;1-9(2,3)7-8-10(4,5)6/h;;(H,1,2,3)(H,4,5,6)/q2*+1;/p-2

InChI key

CHQMHPLRPQMAMX-UHFFFAOYSA-L

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General description

Sodium persulfate, also known as Sodium peroxodisulfate is an inorganic compound and is a water-soluble strong oxidizing agent, that is stable and easy to handle. It is commonly used as an oxidant in organic synthesis reactions such as transition-metal-catalyzed or metal-free reactions. Additionally, it is used as a polymerization initiator and in the synthesis of sulfate radical anions through heat-activated decomposition.

Application

Sodium persulfate can be used as an oxidant:
  • For the radical cyclization cascade reaction of 2-alkynylbenzonitriles and sodium arylsulfinates to synthesize sulfonated indenones.
  • In the silica-supported aluminum chloride-catalyzed Baeyer-Villiger oxidation of cyclic and acyclic ketones to lactones or esters.
It can also be used as an initiator for the polymerization of styrene to synthesize polystyrene.

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Oral - Ox. Sol. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

216232-BULK:
216232-2.5KG:4548173931517
216232-500G:4548173931531
216232-1KG:
216232-25G:4548173931524
216232-6X500G:
216232-5KG:
216232-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Esther Eljarrat-Binstock et al.
Investigative ophthalmology & visual science, 45(8), 2543-2548 (2004-07-28)
To assess the corneal iontophoretic delivery of gentamicin by drug-loaded hydrogel probe, and to determine the resultant ocular disposition and elimination of the drug from the cornea and anterior chamber. Corneal iontophoresis of gentamicin sulfate was studied in healthy white
N Sabri et al.
The Science of the total environment, 427-428, 382-389 (2012-05-15)
The objective of this work was to evaluate the removal of ibuprofen (IBP) using the oxidants hydrogen peroxide (H(2)O(2)) and sodium persulfate (Na(2)S(2)O(8)). The ability of magnetite (Fe(3)O(4)) to activate persulfate (PS) and H(2)O(2) for the oxidation of IBP at
Mushtaque Ahmad et al.
Journal of contaminant hydrology, 115(1-4), 34-45 (2010-05-05)
Persulfate dynamics in the presence of subsurface minerals was investigated as a basis for understanding persulfate activation for in situ chemical oxidation (ISCO). The mineral-mediated decomposition of persulfate and generation of oxidants and reductants was investigated with four iron and
Aikaterini Tsitonaki et al.
Water research, 42(4-5), 1013-1022 (2007-10-19)
The effects of heat-activated persulfate on indigenous microorganisms and microcosms augmented with Pseudomonas putida KT2440 were studied in laboratory batch reactors with aquifer material. Microscopic enumeration was used to measure the changes in cell density, and acetate consumption was used
Richard L Johnson et al.
Environmental science & technology, 42(24), 9350-9356 (2009-01-30)
Contaminant destruction with in situ chemical oxidation (ISCO) using persulfate (peroxydisulfate, S2O8(2-)) can be enhanced by activation, which increases the rate of persulfate decomposition to sulfate radicals (SO4*-). This step initiates a chain of radical reactions involving species (including SO4*-
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