Description
Potassium permanganate
ACS reagent, ≥99.0%
Empirical Formula (Hill Notation):
KMnO4
CAS Number:
7722-64-7
Molecular Weight:
158.03
EC Number:
231-760-3
MDL number:
MFCD00011364
PubChem Substance ID:
329752309
NACRES:
NA.21
PROPERTIES
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
DESCRIPTION
General description
Potassium permanganate (KMnO4) exhibits strong oxidizing properties.[1] 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.[2]
Potassium permanganate, a dark violet colored crystalline solid, is a strong oxidizing agent for a wide range of organic compounds.[3][4] It is commonly used as a disinfectant to treat external infections in aquaculture.[5] Corncobs pretreated with alkaline potassium permanganate solution showed high carbohydrate recovery due to the increased enzymatic hydrolysis of lignocellulose.[6] The acidic potassium permanganate acts a chemiluminescence reagent for the determination of organic compounds.[7]
Application
Layered MnO2 with very promising characteristics for battery applications is produced by thermal decomposition of KMnO4.[8]
Potassium permanganate may be employed as an oxidizing agent in the synthesis of the following:
- sulfonal (2,2-bisethylsulfonyyl)propane[9]
- cinchomeronic acid (pyridine-3,4-dicarboxylic acid)[10]
- isonicotinic acid (pyridine-4-carboxylic acid)[11]
- manganese(IV) sulfate[12]
Potassium permanganate may be used as an oxidant for the conversion of aromatic aldehydes to corresponding amides in liquid ammonia.[13]
Suitable for heterogeneous oxidations.
SAFETY INFORMATION
Signal Word
Danger
Hazard Statements
H272 - H302 - H314 - H361d - H373 - H410
Precautionary Statements
P210 - P260 - P273 - P280 - P303 + P361 + P353 - P305 + P351 + P338
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 Code
5.1B - Oxidizing hazardous materials
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable