Beryllium Oxide

BeO

IUPAC: Beryllium oxide

CAS: 1304-56-9

Overview

Beryllium oxide has a unique combination of high thermal conductivity and excellent electrical insulation. It conducts heat nearly as well as metals while being an electrical insulator. This makes it invaluable in high-power electronics and nuclear reactors.

Composition

Element Symbol Atoms Atomic Mass
Beryllium Be 1 9.0122
Oxygen O 1 15.9990

Elemental Composition

Be
Beryllium ×1
36.0%
O
Oxygen ×1
64.0%

Uses

  • • High-power electronic heat sinks
  • • Nuclear reactor moderator
  • • Microwave window material
  • • Laser tube component

Fun Facts

  • ✦ One of the few ceramics with thermal conductivity rivaling metals

Safety

  • ⚠ Highly toxic if inhaled as dust
  • ⚠ Causes chronic beryllium disease (berylliosis)
  • ⚠ Carcinogenic

Structure

SMILES

[Be]=O

Properties

Type
oxide
State
solid
Molar Mass
25.01 g/mol
Density
3.0100 g/cm³
Melting Point
2507.0 °C
Boiling Point
3900.0 °C
Solubility
insoluble

Molecular Descriptors

Exact Mass
25.0071
TPSA
17.1 Ų
H-Bond Donors
0
H-Bond Acceptors
1
Rotatable Bonds
0
Heavy Atoms
2
Complexity
2.0

Also Known As

Beryllia Bromellite

Related Compounds

Aluminum Oxide

Al₂O₃

Antimony Trioxide

Sb₂O₃

Barium Oxide

BaO

Bismuth(III) Oxide

Bi₂O₃

Boron Trioxide

B₂O₃

Cadmium Oxide

CdO

Calcium Oxide

CaO

Carbon Dioxide

CO₂

Carbon Monoxide

CO

Cerium(IV) Oxide

CeO₂

Frequently Asked Questions

What is Beryllium Oxide?
Beryllium Oxide (BeO) is a oxide compound with the IUPAC name Beryllium oxide.
What is the molecular weight of Beryllium Oxide?
Beryllium Oxide has a molar mass of 25.012 g/mol.
What state is Beryllium Oxide at room temperature?
Beryllium Oxide is a solid at room temperature.
Is Beryllium Oxide organic or inorganic?
Beryllium Oxide is classified as an inorganic compound.
What elements make up Beryllium Oxide?
Beryllium Oxide (BeO) is composed of Beryllium (Be), Oxygen (O).