Formation of Aluminum Oxide

4Al + 3O2 → 2Al2O3

نظرة عامة

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.

المشاركون

الدور المادة المعامل الحالة
متفاعل Oxygen O 3 (g)
متفاعل Aluminum Al 4 (s)
منتج Aluminum Oxide Al₂O₃ 2 (s)

مثال من الحياة اليومية

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

الأهمية الصناعية

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.

الخصائص

النوع
Synthesis
قابل للعكس
لا
الطاقة
طارد للحرارة
ΔH
-3351,4 kJ/mol

التفاعلات ذات الصلة

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.