A

Aluminium

IUPAC: Aluminium

Al Elements CAS 7429-90-5
Quick Reference
Formula / NotationAl
CAS Number7429-90-5
Molecular Weight26.98
Melting Point660.3
Boiling Point2519.0
Density2.7
SolubilityInsoluble in water (dissolves in acids/bases)
AppearanceSilvery-white, lightweight, lustrous metal
Also Known AsAl, aluminum, aluminium metal
CategoryElements

What is Aluminium?

Aluminium is a silvery-white lightweight metal, atomic number 13, the most abundant metal in Earth crust. Forms thin protective oxide layer preventing corrosion. Highly malleable, good electrical conductor. Produced by Hall-Heroult electrolysis.

Formula & Notation

Al

IUPAC Name: Aluminium

Other Names / Synonyms: Al, aluminum, aluminium metal

Properties & Characteristics

Atomic number: 13. Atomic mass: 26.982 g/mol. Period 3, Group 13. Melting point: 660.3 C. Boiling point: 2519 C. Density: 2.70 g/cm3. Electronegativity: 1.61. Amphoteric oxide. One stable isotope: Al-27.

Physical Data

PropertyValue
Melting Point660.3
Boiling Point2519.0
Density2.7
Molecular Weight26.98
SolubilityInsoluble in water (dissolves in acids/bases)
AppearanceSilvery-white, lightweight, lustrous metal

Uses & Applications

Packaging (cans, foil). Construction (window frames, roofing). Aircraft and vehicle structures. Electrical transmission lines. Thermite (Al + Fe2O3). Anodising. Al2O3 abrasive and refractory. Cooking utensils.

Safety Information

Aluminium powder: fire and explosion hazard (dust cloud). Aluminium dust: lung irritant with chronic exposure. Reacts with strong acids and bases releasing H2. Hot aluminium: severe burn hazard.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Aluminium
Formula Al
CAS Number 7429-90-5
Molecular Weight 26.98
Category Elements
Synonyms Al, aluminum, aluminium metal

Frequently Asked Questions

Aluminium is a silvery-white lightweight metal, atomic number 13, the most abundant metal in Earth crust. Forms thin protective oxide layer preventing corrosion. Highly malleable, good electrical conductor. Produced by Hall-Heroult electrolysis.

More "A" Terms

View all "A" terms →
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z