Formation of Iron(III) Oxide
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4Fe + 3O2 → 2Fe2O3
Tổng quan
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.
Người tham gia
| Vai trò | Chất | Hệ số | Trạng thái |
|---|---|---|---|
| Chất phản ứng | Oxygen O | 3 | (g) |
| Chất phản ứng | Iron Fe | 4 | (s) |
| Sản phẩm | Iron(III) Oxide Fe₂O₃ | 2 | (s) |
Ví dụ thực tế
Rusting of iron nails, cars, and bridges left exposed to air and moisture is this reaction occurring slowly over time.
Tầm quan trọng công nghiệp
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.
Tính chất
- Loại
- Synthesis
- Thuận nghịch
- Không
- Năng lượng
- Tỏa nhiệt
- ΔH
- -1648,4 kJ/mol