산화알루미늄

Al₂O₃

IUPAC: Aluminium oxide

CAS: 1344-28-1

개요

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

구성

원소 기호 원자 원자 질량
산소 O 3 15.9990
알루미늄 Al 2 26.9820

원소 구성

용도

  • Aluminum production
  • Abrasives
  • Ceramic insulators
  • Gemstones

흥미로운 사실

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

구조

SMILES

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

성질

유형
oxide
상태
solid
몰 질량
101.96 g/mol
밀도
3.9500 g/cm³
녹는점
2072.0 °C
끓는점
2977.0 °C
용해도
Insoluble

분자 기술자

정확 질량
101.9478
TPSA
3.0 Ų
수소결합 주개
0
수소결합 받개
3
회전 가능 결합
0
중원자
5
복잡도
0.0

Frequently Asked Questions

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