399124

Sigma-Aldrich

Potassium permanganate

ACS reagent, ≥99.0%, low in mercury

Empirical Formula (Hill Notation):
KMnO4
CAS Number:
Molecular Weight:
158.03
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

grade

ACS reagent

assay

≥99.0%

form

beads or granules
chunks
crystalline powder

reaction suitability

reagent type: oxidant

impurities

≤0.005% N compounds
≤0.2% insolubles

pH

7.2-9.7 (20 °C, 20 g/L)

solubility

water: soluble 63.8 g/L at 20 °C(lit.)
acetone: soluble(lit.)
methanol: soluble(lit.)

anion traces

chloride, chlorate (as Cl-): ≤0.005%
sulfate (SO42-): ≤0.02%

cation traces

Hg: ≤0.05 ppm

SMILES string

[K+].[O-][Mn](=O)(=O)=O

InChI

1S/K.Mn.4O/q+1;;;;;-1

InChI key

VZJVWSHVAAUDKD-UHFFFAOYSA-N

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General description

Potassium permanganate (PP, KMnO4) is a dark violet colored crystalline solid. It is a strong oxidizing agent used in the oxidation of a wide range of organic compounds. PP is commonly used as a disinfectant to treat external infections in aquaculture. Corncobs pretreated with alkaline potassium permanganate solution showed high carbohydrate recovery due to the increased enzymatic hydrolysis of lignocellulose. The acidic potassium permanganate chemiluminescence detection has been employed for the detection of cannabinoids.

Application

Potassium permanganate was used in the preparation of layered MnO2 which may be employed as cathodic material in lithium secondary batteries.
It may be used as an oxidant in:
  • The reduction of polycyclic aromatic hydrocarbons found in coal tar pitches (CTPs).
  • Oxidation of decabromodiphenyl ether in sulfuric acid medium.
  • Oxidative cleavage of oximes to the corresponding carbonyl compounds potassium permanganate supported on kieselguhr.
  • Oxidation of progestagens.
Suitable for heterogeneous oxidations.

Packaging

25, 500 g in poly bottle
2.5 kg in poly bottle

Signal Word

Danger

Target Organs

Brain

RIDADR

UN 1490 5.1 / PGII

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Potassium Permanganate

Lee DG, et al.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2007)
Oxidative Degradation of Decabromodiphenyl Ether (BDE 209) by Potassium Permanganate: Reaction Pathways, Kinetics, and Mechanisms Assisted by Density Functional Theory Calculations.
Shi J, et al.
Environmental Science & Technology, 49(7), 4209-4217 (2015)
Degradation of progestagens by oxidation with potassium permanganate in wastewater effluents.
Fayad PB, et al.
Chemistry Central Journal, 7, 84-84 (2013)
Screening of cannabinoids in industrial-grade hemp using two-dimensional liquid chromatography coupled with acidic potassium permanganate chemiluminescence detection.
Pandohee J, et al.
Journal of Separation Science, 38(12), 2024-2032 (2015)
Reducing polycyclic aromatic hydrocarbons content in coal tar pitch by potassium permanganate oxidation and solvent extraction.
Wang W, et al.
Journal of Environmental Chemical Engineering, 3(3), 1513-1521 (2015)

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