Density, specific heat, melting temperature of tin
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General information about tin
This is a metal that belongs to the germanium subgroup of the 4th 5th group of the periodic system of Mendeleev elements. Typically, the naturally occurring tin is represented by ten different isotopes that have different mass numbers: from 112 Sn (less than one percent) to a slightly radioactive 125 Sn (prevalence of about 6%). The most common are 120 Sn (32.97%), 118 Sn (24.01%) and 116 Sn (14.24%). It is a soft and technological metal, easily liable to plastic deformation: it is easily forged and stamped at ordinary temperatures, and also easily melts. The tin foil rolled in the cold state may have a thickness of 5 μm.
Conventional white β-tin, cooling below 13.2 ° C, turns into α-tin, which has a gray color, becomes brittle and is easily ground into a powder. The same happens if this metal is cooled to ~200 ° C. Supplier Evek GmbH offers to buy tin-rolled products at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Basic physical properties of tin
The crystal structure of α (cubic), β (tetragonal)
|Melting point, ° С||231.9|
|Boiling point, ° С||2270|
|Density, kg / m 3||7300|
|Changes in the volume after the conversion of gray tin to white,%||27th|
|Specific heat, t ° 0−100 ° C, cal / (g ° C)||0.054|
|Thermal conductivity, cal / (sms ° C)||0.157|
|Coefficient of linear expansion||22.4 x 10 -6 (solid)|
|Thermal expansion in the liquid state||100 · 10 -6|
|Specific electrical conductivity, m / Omm · m 2||8.95|
|Specific electrical resistance, Omm · m 2 / m||0.124|
|Temperature coefficient of electrical resistivity||0,0044|
|Electrical resistance in the liquid state (300 ° C), Ohm / cm 3||49 · 10 -3|
|Surface tension, t ° 300 ° C, dynes / cm||526|
|Modulus of elasticity (at 0 ° С), MPa||55,000|
|Modulus of elasticity (at 100 ° C), MPa||48,000|
|Modulus of elasticity (at 200 ° C), MPa||36,000|
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