Tin (sn)

Tin (Sn)

Physical properties.
Phase- solid.
Density(near r.t.)- (white) 7.365 gcm-3.
Density(near r.t.)- (gray) 5.769 gcm-3.
Melting point- 505.08k, 231.93 degree C, 449.47 degree F.
Boiling point- 2875k, 2603 degree C, 4716 degree F.

Tin's Antiquity

Tin is one of the earliest metal known. Late Stone Age metal-workers discovered that putting
a small amount of tin, about 5%, in molten copper produced an alloy called bronze that was easier to work and much harder than copper. In 1931 the tin producers founded the international tin committee, followed in 1956 by the international tin council, an institution to control the tin market. After the collapse of the market in October 1985 the price for tin nearly halve.

Uses for tin.

Tin is used for coating lead or zinc and steel to prevent corrosion. Window glass is most often made via floating molten glass on top of molten tin (creating float glass) in order to make a flat surface (this is called the "Pilkington process"). Tin has long been used as a solder in the form of an alloy with lead, tin comprising 5 to 70% w/w. Tin forms a eutectic mixture with lead containing 63% tin and 37% lead. Such solders are primarily used for solders for joining pipes or electric circuits.

Martin Moreta and Marco Gutierrez