Formation of Aluminum Oxide

4Al + 3O2 → 2Al2O3

अवलोकन

Aluminum reacts with oxygen to form aluminum oxide (alumina). While aluminum appears resistant to corrosion, it actually oxidizes instantly in air, forming a thin protective oxide layer that prevents further reaction. Powdered aluminum burns vigorously in oxygen.

प्रतिभागी

भूमिका पदार्थ गुणांक अवस्था
अभिकारक Oxygen O 3 (g)
अभिकारक Aluminum Al 4 (s)
उत्पाद Aluminum Oxide Al₂O₃ 2 (s)

रोजमर्रा का उदाहरण

The dull gray coating on aluminum cans and foil is a thin layer of aluminum oxide that protects the metal from further corrosion.

औद्योगिक महत्व

Aluminum oxide is used as an abrasive (corundum), in ceramics, as catalyst support material, and as the starting material for aluminum metal production via the Hall-Heroult process.

गुण

प्रकार
Synthesis
प्रतिवर्ती
नहीं
ऊर्जा
ऊष्माक्षेपी
ΔH
-3351.4 kJ/mol

संबंधित अभिक्रियाएँ

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

Frequently Asked Questions

What is the equation for Formation of Aluminum Oxide?
The balanced equation is: 4Al + 3O₂ → 2Al₂O₃.
What type of reaction is Formation of Aluminum Oxide?
Formation of Aluminum Oxide is a synthesis reaction.
Is Formation of Aluminum Oxide exothermic or endothermic?
Formation of Aluminum Oxide is exothermic (releases energy). The enthalpy change (ΔH) is -3351.4 kJ/mol.