Formation of Iron(III) Oxide
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4Fe + 3O2 → 2Fe2O3
Обзор
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.
Участники
| Роль | Вещество | Коэффициент | Состояние |
|---|---|---|---|
| Реагент | Oxygen O | 3 | (g) |
| Реагент | Iron Fe | 4 | (s) |
| Продукт | Iron(III) Oxide Fe₂O₃ | 2 | (s) |
Пример из жизни
Rusting of iron nails, cars, and bridges left exposed to air and moisture is this reaction occurring slowly over time.
Промышленное значение
Understanding iron oxidation is crucial for corrosion prevention in construction and manufacturing. Iron oxide is also used as a pigment and in magnetic storage media.
Свойства
- Тип
- Synthesis
- Обратимая
- Нет
- Энергия
- Экзотермическая
- ΔH
- -1648,4 kJ/mol