Aluminium:
- Aluminium is the product which does not exist in free state in nature, but it exist in the form of aluminium silicates and alumina.
- The main compounds of aluminium existing in nature are silicates, feldspars, hydroxides and oxides.
- It is one of the most widely used non-ferrous metals.
Properties:
The important properties are as follows:
- Firstly, It is a tin white metal.
- Very tough and has great tensile strength about 196 N/mm2.
- It is very light in weight, ductile and malleable.
- It’s specific gravity is very low about 2.7.
- Moreover, it is highly electro-positive in character.
- A good conductor of heat and electricity.
- Hot or cold water does not affect it.
- When one burns it in oxygen, then production of alumina takes place.
- Lastly, It is highly resistant to corrosion.
Uses of Aluminium:
It is a very useful metal in everyday life. Some of the important uses are as follows:
- Powdered aluminium is used in the preparation of paints. One also uses it in the manufacture of explosives.
- One uses it in the manufacture of cooking utensils, furnitures, surgical instruments, cables, engine parts and automobile bodies etc.
- One uses Powdered aluminium in flash bulbs for photography.
- One needs it in sliding windows and door frames.
- Also used for making panels for the interior of commercial offices.
- Lastly, One use it for making corrugated sheets for roofings.
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