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Aluminum is one of the most commonly used metals on the planet, and it’s arguably most famous for not rusting. Aluminum doesn’t rust, only iron’s specific oxidation is called rust and there is no iron used when creating aluminum. However, like all metals, Aluminum is susceptible to corrosion.aluminium oxide wholesale
Aluminum is made in 3 stages:
Stage 1. Mining
Stage 2. Processing
Stage 3. Electrolytic reduction (which creates the actual aluminum)
Aluminum comes from a mineral called bauxite. Bauxite is most commonly found in sub-tropical places like Africa, the West Indies, South America, and Australia – although there are some small deposits in other places like Europe. Australia is the largest producer of bauxite, supplying about 23% of the world’s global production.
This bauxite is then processed into aluminum oxide, which just consists of atoms of aluminum and oxygen bonded together.
The aluminum oxide then has an electrical current run through it, which separates the different components from each other. Oxygen bubbles form at one end, and pure molten aluminum droplets collect at the other end.
About 4-5 tons of bauxite is processed into 2 tons of aluminum oxide, which creates 1 ton of pure aluminum.
Aluminum corrodes much more slowly than other metals like iron. According to Stanford, the reason why aluminum doesn’t corrode as easily as other metals is because of the special reaction it has with water.
Normally, when water comes into contact with metal it encourages the metal to give up its electrons even faster to the oxygen around it.
Aluminum has a special reaction to water though. When water touches aluminum, the aluminum and the oxygen atoms (contained in the metal – not the oxygen in the air surrounding it) move further apart from each other.
They’ll wind up almost 50% further away from each other than where they started. This reaction of moving away changes the molecular structure of the aluminum just enough that it becomes chemically inert, meaning it doesn’t corrode as easily.
Rust is a naturally occurring chemical reaction. Despite the fact that some metals will rust faster than others, it shouldn’t deter you from utilizing these metals for certain uses. There are many ways you can prevent your metals from rusting, such as metal paints and coatings, sacrificial barriers, barrier films as well as numerous anti-rust solutions and tin plating. Each method utilizes different compounds and materials to create a protective barrier between the metal and the elements that cause rust and corrosion.
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