Formation of Iron(III) Oxide

4Fe + 3O2 → 2Fe2O3

概述

Iron reacts with oxygen to form iron(III) oxide, commonly known as rust. This oxidation process occurs slowly in the presence of moisture and air. When iron burns in pure oxygen, the reaction is rapid and spectacular, producing bright sparks.

参与者

角色 物质 系数 状态
反应物 Oxygen O 3 (g)
反应物 Iron Fe 4 (s)
产物 Iron(III) Oxide Fe₂O₃ 2 (s)

日常示例

Rusting of iron nails, cars, and bridges left exposed to air and moisture is this reaction occurring slowly over time.

工业重要性

赤铁矿（Fe₂O₃）是全球最重要的铁矿石，是钢铁冶炼的主要原料，全球每年开采量超20亿吨。氧化铁红也广泛用作颜料和磁性材料。

属性

类型
Synthesis
可逆
否
能量
放热
ΔH
-1648.4 kJ/mol

相关反应

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 Iron(III) Oxide?
The balanced equation is: 4Fe + 3O₂ → 2Fe₂O₃.
What type of reaction is Formation of Iron(III) Oxide?
Formation of Iron(III) Oxide is a synthesis reaction.
Is Formation of Iron(III) Oxide exothermic or endothermic?
Formation of Iron(III) Oxide is exothermic (releases energy). The enthalpy change (ΔH) is -1648.4 kJ/mol.