Rusting
Rusting
Rusting (/ˈrʌstɪŋ/), also known as corrosion, is a natural process that occurs when iron or its alloys come into contact with oxygen and moisture over a period of time. The term "rusting" is specifically used for the corrosion of iron or its alloys such as steel.
Etymology
The term "rusting" comes from the Old English word "rust", which means "redness" or "red color". This is in reference to the reddish-brown color that is characteristic of rust.
Process
The process of rusting involves the oxidation of iron. When iron is exposed to oxygen in the presence of water, it forms iron(III) oxide, which is commonly known as rust. The chemical reaction can be represented as follows:
2Fe + 3O2 + xH2O → 2Fe2O3.xH2O
Prevention
Rusting can be prevented by various methods such as painting, galvanizing, and the use of rust inhibitors. These methods work by creating a barrier that prevents the iron from coming into contact with oxygen and moisture.
Related Terms
- Corrosion: The process of deterioration of materials due to chemical reactions with their environment.
- Oxidation: A chemical reaction that involves the loss of electrons.
- Iron(III) Oxide: A compound formed when iron reacts with oxygen in the presence of water.
- Galvanizing: A process of applying a protective zinc coating to iron or steel to prevent rusting.
External links
- Medical encyclopedia article on Rusting
- Wikipedia's article - Rusting
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