Iron(II,III) Oxide

Fe₃O₄

IUPAC: Iron(II,III) oxide

CAS: 1317-61-9

Overview

Magnetite (Fe₃O₄) is the most magnetic naturally occurring mineral on Earth. It is the oldest known magnetic material and was used in the first compasses.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 4 15.9990
Iron Fe 3 55.8450

Elemental Composition

O
Oxygen ×4
27.6%
Fe
Iron ×3
72.4%

Uses

  • • Magnetic recording media
  • • MRI contrast agent
  • • Catalyst
  • • Pigment

Fun Facts

  • ✦ Lodestone, a natural magnetite, was the basis for the first magnetic compasses 2,000 years ago

Structure

SMILES

O=[Fe].O=[Fe]O[Fe]=O

Properties

Type
oxide
State
solid
Molar Mass
231.53 g/mol
Density
5.1700 g/cm³
Melting Point
1597.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
231.7845
TPSA
60.4 Ų
H-Bond Donors
0
H-Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
7
Complexity
36.0

Related Compounds

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Barium Oxide

BaO

Beryllium Oxide

BeO

Bismuth(III) Oxide

Bi₂O₃

Boron Trioxide

B₂O₃

Cadmium Oxide

CdO

Calcium Oxide

CaO

Carbon Dioxide

CO₂

Carbon Monoxide

CO

Frequently Asked Questions

What is Iron(II,III) Oxide?
Iron(II,III) Oxide (Fe₃O₄) is a oxide compound with the IUPAC name Iron(II,III) oxide.
What is the molecular weight of Iron(II,III) Oxide?
Iron(II,III) Oxide has a molar mass of 231.53 g/mol.
What state is Iron(II,III) Oxide at room temperature?
Iron(II,III) Oxide is a solid at room temperature.
Is Iron(II,III) Oxide organic or inorganic?
Iron(II,III) Oxide is classified as an inorganic compound.
What elements make up Iron(II,III) Oxide?
Iron(II,III) Oxide (Fe₃O₄) is composed of Oxygen (O), Iron (Fe).