Aluminum Oxide

Al₂O₃

IUPAC: Aluminium oxide

CAS: 1344-28-1

Tổng quan

Aluminum oxide (alumina) is an extremely hard ceramic material. Natural corundum, rubies, and sapphires are crystalline forms of Al₂O₃.

Thành phần

Nguyên tố Ký hiệu Nguyên tử Khối lượng nguyên tử
Oxygen O 3 15,9990
Aluminum Al 2 26,9820

Thành phần nguyên tố

O
Oxygen ×3
47,1%
Al
Aluminum ×2
52,9%

Công dụng

  • • Aluminum production
  • • Abrasives
  • • Ceramic insulators
  • • Gemstones

Sự thật thú vị

  • ✦ Rubies and sapphires are Al₂O₃ crystals colored by trace impurities — chromium for rubies, iron/titanium for sapphires

Structure

SMILES

[O-2].[O-2].[O-2].[Al+3].[Al+3]

Tính chất

Loại
oxide
Trạng thái
solid
Khối lượng mol
101,96 g/mol
Mật độ
3,9500 g/cm³
Điểm nóng chảy
2072,0 °C
Điểm sôi
2977,0 °C
Độ hòa tan
Insoluble

Molecular Descriptors

Exact Mass
101,9478
TPSA
3,0 Ų
H-Bond Donors
0
H-Bond Acceptors
3
Rotatable Bonds
0
Heavy Atoms
5
Complexity
0,0

Hợp chất liên quan

Bismuth(III) Oxide

Bi₂O₃

Carbon Monoxide

CO

Chromium Trioxide

CrO₃

Cobalt(II) Oxide

CoO

Copper(I) Oxide

Cu₂O

Lithium Nickel Manganese Cobalt Oxide

LiNi₀.₃₃Mn₀.₃₃Co₀.₃₃O₂

Gallium(III) Oxide

Ga₂O₃

Antimony Trioxide

Sb₂O₃

Beryllium Oxide

BeO

Cadmium Oxide

CdO

Frequently Asked Questions

What is Aluminum Oxide?
Aluminum Oxide (Al₂O₃) is a oxide compound with the IUPAC name Aluminium oxide.
What is the molecular weight of Aluminum Oxide?
Aluminum Oxide has a molar mass of 101.96 g/mol.
What state is Aluminum Oxide at room temperature?
Aluminum Oxide is a solid at room temperature.
Is Aluminum Oxide organic or inorganic?
Aluminum Oxide is classified as an inorganic compound.
What elements make up Aluminum Oxide?
Aluminum Oxide (Al₂O₃) is composed of Oxygen (O), Aluminum (Al).