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Formula: Bi
Form: Foil/Film/Sheet
Material: Bismuth
CAS Number: 7440-69-9
Commodity: Metals
Bismuth Foil is available in 73 variations. This metallic foil exhibits a pinkish, silvery metallic lustre and is brittle with low thermal and electrical conductivity. Applications of Bismuth Foil include radiation shielding, thermoelectric devices and research. Its unique diamagnetic properties also make it useful for levitation experiments and demonstrations. The availability of high purity Bismuth Foil in different thicknesses from Goodfellow allows scientists and engineers to select the ideal material for their specific application.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Foil/Film/Sheet
Thickness <0.01mm ±25%
Thickness 0.01mm - 0.05mm ±15%
Thickness >0.05mm ±10%

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 83
Crystal structure Rhombohedral
Electronic structure Xe 4f¹⁴ 5d¹⁰ 6s² 6p³
Valences shown 3, 5
Atomic weight( amu ) 208.9804
Thermal neutron absorption cross-section( Barns ) 0.034
Photo-electric work function( eV ) 4.4
Atomic radius - Goldschmidt( nm ) 0.182
Ionisation potential( No./eV ) 5/ 56.0
Ionisation potential( No./eV ) 1/ 7.29
Ionisation potential( No./eV ) 3/ 25.6
Ionisation potential( No./eV ) 4/ 45.3
Ionisation potential( No./eV ) 6/ 88.3
Ionisation potential( No./eV ) 2/ 16.7
Mechanical Properties
Element Value
Material condition Polycrystalline
Poisson's ratio 0.33
Bulk modulus( GPa ) 31.3
Tensile modulus( GPa ) 34
Hardness - Vickers( kgf mm⁻² ) 16-19
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 117@20@20°C
Temperature coefficient( K⁻¹ ) 0.0046@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) -7.34
Physical Properties
Element Value
Boiling point( C ) 1560
Density( gcm⁻³ ) 9.8@20°C
Thermal Properties
Element Value
Melting point( C ) 271.3
Latent heat of evaporation( J g⁻¹ ) 857
Latent heat of fusion( J g⁻¹ ) 52
Specific heat( J K⁻¹ kg⁻¹ ) 124@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 7.9@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 13.4@0-100°C

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