216224

Sigma-Aldrich

Potassium persulfate

ACS reagent, ≥99.0%

Synonym(s):
Potassium peroxodisulfate, KPS
Linear Formula:
K2S2O8
CAS Number:
Molecular Weight:
270.32
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

vapor density

9.3 (vs air)

vapor pressure

<0.1 hPa ( 25 °C)

assay

≥99.0%

form

powder or crystals

reaction suitability

reagent type: catalyst
reaction type: C-H Activation

reagent type: oxidant

impurities

≤0.001% Cl compounds
≤0.005% insolubles

pH

2.5-4.5 (25 °C, 27 g/L)

cation traces

Fe: ≤5 ppm
Mn: ≤2 ppm
heavy metals (as Pb): ≤0.001%

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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Signal Word

Danger

Target Organs

Respiratory system

RIDADR

UN 1492 5.1 / PGIII

WGK Germany

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Free radical degradation of chitosan with potassium persulfate.
Hsu SC, et al.
Polymer Degradation and Stability, 75(1), 73-83 (2002)
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)
Harriet Mörtstedt et al.
Rapid communications in mass spectrometry : RCM, 25(2), 327-340 (2010-12-31)
Oxidative stress has been suggested as an underlying mechanism of many human diseases. However, definitive evidence for this association has not been presented due to different shortcomings of the methods used to measure biomarkers of oxidative stress. Persulfates are oxidizing...
Huan Niu et al.
Biosensors & bioelectronics, 26(7), 3175-3180 (2011-01-18)
A novel label free electrochemiluminescence (ECL) immunosensor based on the ECL of peroxydisulfate solution for detection of α-1-fetoprotein (AFP) has been developed. For this proposed immunosensor, L-cysteine was firstly electrodeposited on the gold electrode surface, which promoted the electron transfer...

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