ZIMSEC O Level Combined Science Notes: Oxidation of iron/Rusting
- Iron combines with oxygen to form rust
- The oxidation process of iron is known asĀ rusting
- Rust is a reddish-brown crust that forms on iron
- It is iron oxide
- \text{iron+oxygen}\rightarrow\text{iron oxide}
- Most iron objects such as nails, paper clips, wires and iron coins rust when they are exposed to the atmosphere for an extended period of time
- Rust is formed in the presence of moisture and air
- Rust causes items to look unsightly
- It also causes their eventual disintergration
- It is thus important to prevent and reduce the effects of rusting
Preventing and reducing the effects of rusting
- Painting
- Using alloys
- Galvanising
- Electroplating
- Oiling/Bluing
- Using inhibitors
- Controlling humidity
- Using cathode protection
To access more topics go to the Combined Science Notes page.
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