Manganese Dioxide

MnO₂

IUPAC: Manganese(IV) oxide

CAS: 1313-13-9

Overview

Manganese dioxide is a black mineral that occurs naturally as pyrolusite. It is the primary cathode material in alkaline and zinc-carbon batteries.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 2 15.9990
Manganese Mn 1 54.9380

Elemental Composition

Uses

  • Battery cathode material
  • Pigment
  • Chemical oxidizer
  • Water purification

Fun Facts

  • Every alkaline AA battery contains manganese dioxide as its cathode

Safety

  • ⚠ Oxidizer
  • ⚠ Irritant

Structure

SMILES

O=[Mn]=O

Properties

Type
oxide
State
solid
Molar Mass
86.94 g/mol
Density
5.0260 g/cm³
Melting Point
535.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
86.9279
TPSA
34.1 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
18.0

Frequently Asked Questions

What is Manganese Dioxide?
Manganese Dioxide (MnO₂) is a oxide compound with the IUPAC name Manganese(IV) oxide.
What is the molecular weight of Manganese Dioxide?
Manganese Dioxide has a molar mass of 86.94 g/mol.
What state is Manganese Dioxide at room temperature?
Manganese Dioxide is a solid at room temperature.
Is Manganese Dioxide organic or inorganic?
Manganese Dioxide is classified as an inorganic compound.
What elements make up Manganese Dioxide?
Manganese Dioxide (MnO₂) is composed of Oxygen (O), Manganese (Mn).