Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

379824

Sigma-Aldrich

Potassium persulfate

99.99% trace metals basis

Synonym(s):

Potassium peroxodisulfate

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
K2S2O8
CAS Number:
7727-21-1
Molecular Weight:
270.32
EC Number:
231-781-8
MDL number:
MFCD00011386
UNSPSC Code:
12352302
PubChem Substance ID:
24863691
NACRES:
NA.23

vapor density

9.3 (vs air)

Quality Level

200

assay

99.99% trace metals basis

form

solid

reaction suitability

reagent type: oxidant

impurities

≤150.0 ppm Trace Metal Analysis

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

Looking for similar products? Visit Product Comparison Guide

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_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCQ4534
MKCP5795
MKCP1955
MKCN5547
MKCK2236

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Preparation of Monodisperse Polymer Spheres.
Fierke MA
Material Matters , 3.1, 13-13 (2008)
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)
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)
Free radical degradation of chitosan with potassium persulfate.
Hsu SC, et al.
Polymer Degradation and Stability, 75(1), 73-83 (2002)
View All Related Papers

Articles

Initiator/Stabilizer FAQs

An article regarding common FAQs for initiators and stabilizers.

Protocols

Preparation of Monodisperse Polymer Spheres

Monodisperse, surfactant-free polymer spheres for use as colloidal crystal templates can be easily obtained in reasonably large quantities. Typical synthesis methods for poly(methyl methacrylate) (PMMA) and poly(styrene) (PS) by emulsifier free emulsion polymerization are described below and yield spheres several hundred nanometers in diameter.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service