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216224

Sigma-Aldrich

Potassium persulfate

ACS reagent, ≥99.0%

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

grade

ACS reagent

Quality Level

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

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 Code

5.1B - Oxidizing hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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