When the pieces of iron They are new, they look shiny, but after a while we see how a layer of oxide of iron and we say that it has rusted. What happened?
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The iron oxidizes because a chemical reaction occurs between the iron and oxygen from the air.
When a piece of iron or steel exposed to the open air and without paint, will soon rust.
The oxide It can corrode the surface of any metal object. This reaction is called oxidation and produces oxide of iron.
During this chemical reaction, the atoms of iron pass electrons to oxygen atoms
Objects exposed to the open air rust.
As we have said, the iron it oxidizes when it comes into contact with oxygen, but its oxidation process is generally very slow. However, it can oxidize quickly and in greater quantities in coastal areas or in humid environments than in dry areas.
This is because moisture acts as a catalyst for the oxidation reaction, accelerating and enhancing the process.
The main catalyst for oxidation is water. For example, metallic things near the sea rust sooner, because salt also accelerates oxidation. The characteristic color of iron rusty is the reddish.
How to prevent an element from rusting?
To avoid the oxide you have to put a protective barrier, either natural or artificial. Painting is one of them.
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