Tin

50
Sn
118.69

tin.jpg (16385 bytes)
Tin is used in organ pipes.

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Sn Tin 50 118.69 14

Description

Standard State: solid at 298 K
Color: Silver lustrous gray

Known to the ancients. Tin is found chiefly in cassiterite.  Most of the world's supply comes from Malaya, Boliva, Indonesia, Zaire, Thailand, and Nigeria.   The U.S. produces almost none, although occurrences have been found in Alaska and California.

Tin is obtained by reducing the ore with coal in a reverberatory furnace.   Ordinary tin is composed of nine stable isotopes.

Due to the breaking of the crystals in tin, a "tin cry" is heard when a bar is bent.

Most window glass is now made by floating molten glass on molten tin to produce a flat surface.

Of recent interests is a crystalline tin-niobium alloy that is superconductive at very low temperatures.  This promises to be important in the construction of super-conductive magnets generate field strengths but use practically no power.