Uranium Dioxide

UO₂

IUPAC: Uranium(IV) oxide

CAS: 1344-57-6

Overview

Uranium dioxide is the standard nuclear fuel used in most commercial nuclear reactors. It has a remarkably high melting point and excellent radiation resistance.

Composition

Element Symbol Atoms Atomic Mass
Oxygen O 2 15.9990
Uranium U 1 238.0300

Elemental Composition

O
Oxygen ×2
11.8%
U
Uranium ×1
88.1%

Uses

  • • Nuclear reactor fuel
  • • Nuclear research

Fun Facts

  • ✦ A single uranium fuel pellet (7g) contains as much energy as 1 tonne of coal

Safety

  • ⚠ Radioactive
  • ⚠ Toxic heavy metal

Structure

SMILES

[O-2].[O-2].[U+4]

Properties

Type
oxide
State
solid
Molar Mass
270.03 g/mol
Density
10.9700 g/cm³
Melting Point
2865.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
270.0406
TPSA
2.0 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
0.0

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 Uranium Dioxide?
Uranium Dioxide (UO₂) is a oxide compound with the IUPAC name Uranium(IV) oxide.
What is the molecular weight of Uranium Dioxide?
Uranium Dioxide has a molar mass of 270.03 g/mol.
What state is Uranium Dioxide at room temperature?
Uranium Dioxide is a solid at room temperature.
Is Uranium Dioxide organic or inorganic?
Uranium Dioxide is classified as an inorganic compound.
What elements make up Uranium Dioxide?
Uranium Dioxide (UO₂) is composed of Oxygen (O), Uranium (U).