Tin is a rare earth metal with the symbol Sn. It is obtained chiefly from the mineral cassiterite which contains tin dioxide, SnO2.
Tin has been used since the beginning of the Bronze Age, around 3000 BC. Today, it has a wide variety of uses in many different industries.
Uses of tin
About half of all tin that is produced is used for solder which in turn is most commonly used for joining electric circuits.
Tin is also used to coat lead, zinc and steel to prevent corrosion. Steel containers coated with tin are commonly used to preserve food.
Tin is used in many specialized alloys including pewter and bronze. It is also used to create a special type of bronze called bell metal that is used for making bells.
Molten glass used in the production of windows is often floated on top of molten tin to create a flat surface.
A chemical compound of tin and fluoride, known as stannous fluoride, is used in toothpaste to improve dental health.
Demand by end use: