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379824

Potassium persulfate

99.99% trace metals basis

Synonym(s):

Potassium peroxodisulfate

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About This Item

Linear Formula:
K2S2O8
CAS Number:
7727-21-1
Molecular Weight:
270.32
NACRES:
NA.23
PubChem Substance ID:
24863691
UNSPSC Code:
12352302
EC Number:
231-781-8
MDL number:
MFCD00011386
Assay:
99.99% trace metals basis
Form:
solid
Solubility:
water: soluble
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vapor density

9.3 (vs air)

Quality Level

200

assay

99.99% trace metals basis

form

solid

reaction suitability

core: potassium, reagent type: oxidant

impurities

≤150.0 ppm Trace Metal Analysis

solubility

water: soluble

SMILES string

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

InChI

1S/2K.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

USHAGKDGDHPEEY-UHFFFAOYSA-L

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This Item
21622490673560489
Potassium persulfate 99.99% trace metals basis

Sigma-Aldrich

379824

Potassium persulfate

Potassium persulfate ACS reagent, ≥99.0%

Sigma-Aldrich

216224

Potassium persulfate

Potassium persulfate free-flowing, Redi-Dri™, ACS reagent, ≥99.0%

Sigma-Aldrich

906735

Potassium persulfate

Potassium peroxodisulfate puriss. p.a., ACS reagent, ≥99.0% (RT)

Sigma-Aldrich

60489

Potassium peroxodisulfate

form

solid

form

powder or crystals

form

powder

form

powder or crystals

solubility

water: soluble

solubility

water: soluble (52.77 g/l at 20 °C (68 °F))

solubility

water: soluble (52.77 g/l at 20 °C (68 °F))

solubility

water: soluble (52.77 g/l soluble (68 °F / 20 °C) pH: 3.8)

assay

99.99% trace metals basis

assay

≥99.0%

assay

≥99.0%

assay

≥99.0% (RT)

Quality Level

200

Quality Level

200

Quality Level

-

Quality Level

200

impurities

≤150.0 ppm Trace Metal Analysis

impurities

≤0.001% Cl compounds, ≤0.005% insolubles

impurities

-

impurities

≤0.001% total nitrogen (N)

reaction suitability

core: potassium, reagent type: oxidant

reaction suitability

-

reaction suitability

-

reaction suitability

-

Application

Potassium persulfate is used to initiate the polymerization of styrene to form monodispersed, surfactant-free polystyrene spheres. Potassium persulfate is used as an oxidant to generate 2,2-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical cation to measure the antioxidant activities of natural compounds.

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

5.1B - Oxidizing hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX8832
MKCX0002
MKCV2877
MKCT7546
MKCT9161

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Preparation of Monodisperse Polymer Spheres.
Fierke MA
Material Matters , 3.1, 13-13 (2008)
ESR and X-ray Structure Investigations on the Binding and Mechanism of Inhibition of the Native State of Myeloperoxidase with Low Molecular Weight Fragments
Chavali B, et al.
Applied magnetic resonance, 46.8, 853-873 (2015)
Free radical degradation of chitosan with potassium persulfate.
Hsu SC, et al.
Polymer Degradation and Stability, 75(1), 73-83 (2002)
Potassium persulfate promoted catalytic wet oxidation of fulvic acid as a model organic compound in landfill leachate with activated carbon.
Xu XY, et al.
Chemical Engineering Journal, 200, 25-31 (2012)
Toughening polystyrene by core-shell grafting copolymer polybutadiene-graft-polystyrene with potassium persulfate as initiator.
Di Cai G, et al.
Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands), 19(3), 823-828 (2013)
View All Related Papers

Articles

Initiator/Stabilizer FAQs

An article regarding common FAQs for initiators and stabilizers.

Protocols

Preparation of Monodisperse Polymer Spheres

Polymeric spheres serve as crystal templates. Synthesis methods yield large quantities.

Global Trade Item Number

SKUGTIN
379824-25G04061831951547
379824-5G04061831951578

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