Potassium Permanganate

KMnO₄

IUPAC: Potassium permanganate

CAS: 7722-64-7

Overview

Potassium permanganate is a powerful oxidizing agent that produces deep purple solutions. It is used in water treatment and organic chemistry.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 4 15.9990
Potassium K 1 39.0980
Manganese Mn 1 54.9380

Elemental Composition

O
Oxygen ×4
40.5%
K
Potassium ×1
24.7%
Mn
Manganese ×1
34.8%

Uses

  • • Water purification
  • • Wound disinfection
  • • Organic oxidation reactions
  • • Fire starting

Fun Facts

  • ✦ KMnO₄ mixed with glycerol spontaneously bursts into flame — a classic chemistry demonstration

Safety

  • ⚠ Strong oxidizer
  • ⚠ Stains skin brown
  • ⚠ Can ignite combustibles

Structure

SMILES

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

Properties

Type
industrial
State
solid
Molar Mass
158.03 g/mol
Density
2.7000 g/cm³
Melting Point
240.0 °C
Solubility
64 g/L at 20°C

Molecular Descriptors

Exact Mass
157.8814
TPSA
74.3 Ų
H-Bond Donors
0
H-Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
6
Complexity
118.0

Related Compounds

Ammonium Nitrate

NH₄NO₃

Calcium Chloride

CaCl₂

Hydrogen Peroxide

H₂O₂

Iron(II) Sulfate

FeSO₄

Potassium Dichromate

K₂Cr₂O₇

Sodium Fluoride

NaF

Sodium Hypochlorite

NaClO

Sodium Silicate

Na₂SiO₃

Zinc Chloride

ZnCl₂

Frequently Asked Questions

What is Potassium Permanganate?
Potassium Permanganate (KMnO₄) is a industrial compound with the IUPAC name Potassium permanganate.
What is the molecular weight of Potassium Permanganate?
Potassium Permanganate has a molar mass of 158.03 g/mol.
What state is Potassium Permanganate at room temperature?
Potassium Permanganate is a solid at room temperature.
Is Potassium Permanganate organic or inorganic?
Potassium Permanganate is classified as an inorganic compound.
What elements make up Potassium Permanganate?
Potassium Permanganate (KMnO₄) is composed of Oxygen (O), Potassium (K), Manganese (Mn).