A Visual Encyclopedia of the Periodic Table

149

Forms

Tin was one of the first metals used

by humans. As long as 5,000 years ago,

tin was mixed with copper to make bronze,

an alloy that was stronger than either pure

metal. The ore cassiterite is the main source

of pure tin. Uses for tin are many, including

plating steel objects, such as cans, to stop

them corroding. A compound called tin

chloride is used for dyeing silks. This metal

continues to be used in a variety of tough

alloys, including pewter, soft solder,

and bronze.

50 50 69

State: Solid

Discovery: c. 2100 bce

The large pipes of this organ

are made of tin and lead.

Pipe organ

This shiny alloy

contains around 90% tin.

Pewter figurine

Watering can

Tin plating over steel

makes the can more

resistant to corrosion.

Tin whistle

The black colour

of the crystals is due

to iron impurities.

This pale, silver y

metal is easily moulded.

Uses

Sn

50

Tin

The tin plating on this

steel whistle prevents rusting.

Cas

siter

ite

Labo

ratory^ sample^ of^ pure (^) t
in
148-149_Germanium_Tin.indd 149 12/12/16 6:15 pm