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223468

Potassium permanganate

ACS reagent, ≥99.0%

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About This Item

Empirical Formula (Hill Notation):
KMnO4
CAS Number:
7722-64-7
Molecular Weight:
158.03
NACRES:
NA.21
PubChem Substance ID:
329752309
UNSPSC Code:
12352312
EC Number:
231-760-3
MDL number:
MFCD00011364
Assay:
≥99.0%
Grade:
ACS reagent
Form:
crystals, granules or powder
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grade

ACS reagent

Quality Level

200

assay

≥99.0%

form

crystals, granules or powder

reaction suitability

reagent type: oxidant

impurities

≤0.005% N compounds, ≤0.2% insolubles

pH

7.2-9.7 (20 °C, 20 g/L)

anion traces

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

SMILES string

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

InChI

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

InChI key

VZJVWSHVAAUDKD-UHFFFAOYSA-N

General description

Potassium permanganate (KMnO4) exhibits strong oxidizing properties. KMnO4 on dissolution in benzene and on complexation with dicyclohexyl-18-crown-6, affords a useful oxidizing reagent. This reagent participates as an oxidant for the oxidation of olefins, alcohols, aldehydes and alkyl benzenes under mild conditions.
Potassium permanganate, a dark violet colored crystalline solid, is a strong oxidizing agent for a wide range of organic compounds. It 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 acts a chemiluminescence reagent for the determination of organic compounds.

Application

Suitable for heterogeneous oxidations.
Layered MnO2 with very promising characteristics for battery applications is produced by thermal decomposition of KMnO4.
Potassium permanganate may be employed as an oxidizing agent in the synthesis of the following:
  • sulfonal (2,2-bisethylsulfonyyl)propane
  • cinchomeronic acid (pyridine-3,4-dicarboxylic acid)
  • isonicotinic acid (pyridine-4-carboxylic acid)
  • manganese(IV) sulfate
Potassium permanganate may be used as an oxidant for the conversion of aromatic aldehydes to corresponding amides in liquid ammonia.

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Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Ox. Sol. 2 - Repr. 2 - Skin Corr. 1 - STOT RE 2 Inhalation

target_organs

Brain

Storage Class

5.1B - Oxidizing hazardous materials

flash_point_f

Not applicable

flash_point_c

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Class I Designated Chemical Substances

prtr

Group 1: Oxidizing solids + Permanganates + Hazardous rank I + 1st oxidizing solid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

223468-500G:4.548173932408E12 + 223468-25G:4.548173932392E12 + 223468-2.5KG:4.548173932385E12

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Advances in the use of acidic potassium permanganate as a chemiluminescence reagent: a review.
Adcock JL, et al.
Analytica Chimica Acta, 807, 9-28 null
Potassium permanganate oxidation of organic compounds.
Shaabani A, et al.
Synthetic Communications, 35(4), 571-580 (2005)
Direct conversion of aromatic aldehydes into benzamides via oxidation with potassium permanganate in liquid ammonia.
Antoniak D, et al.
Synlett, 26(01), 84-86 (2015)
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