Rusting
- Created by: Freya Woolley
- Created on: 08-12-15 19:00
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- Rusting
- Corrosion of iron
- Protection
- Galvanising:
- iron/steel with zinc because it's more reactive
- Sacractional protection:
- when a more reactive metal is used to protect the iron. The oxygen and water reacts with this metal instead
- Coating with oil or grease
- Coat with paint
- Electroplate with another metal
- Alloy with other metals
- Coat with a layer of plastic
- Galvanising:
- Corrosion: metal+oxygen =metal oxide
- The layer of oil stops air entering
- Water is boiled to remove the air
- Anhydrous calcium chloride added to absorb water
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