Bismuth is a brittle metal which is silvery in colour with a pink tinge. It is stable in air and water. It has poor thermal and electrical properties and finds applications in the manufacture of fusible alloys, a range of materials with low melting points which are suitable for various applications including solders and thermal fuses. Pure bismuth shows a high absorbtion of gamma rays which makes it useful as a filter or window for these particles, whilst at the same time permitting the passage of neutrons.


Also known as
Etain de Glace, Plumbum Cinereum, Tectum Argenti, Tin-Glass, Wismuth

15th century

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Atomic number 83 Clip
Atomic / Molecular Weight 208.9804 gmol-1Clip
Density 9803 kgm-3Clip
Crystal Structure rhombohedral Clip
Lattice constant 475 fmClip
Melting Point 544.602 KClip
Boiling Point 1923 KClip
Youngs modulus 32000000000 Nm-2Clip
Poissons ratio 0.33 Clip
Linear expansivity 0.0000134 K-1Clip
Specific heat capacity 121 Jkg-1K-1Clip
Thermal conductivity 8.2 Wm-1K-1Clip
Bulk Modulus of Rigidity 31300000000 Nm-2Clip
Electromotive Series -0.226 VClip
Mohs Hardness 2.25 Clip
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See also: Fields Metal, Periodic Table.

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Subjects: Chemistry