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Formula: Tb
Form: Pellet/Lump
Material: Terbium
CAS Number: 7440-27-9
Commodity: Metals
Purity: 99%
Maximum Lump Size: 25mm
Terbium Pellets from Goodfellow are high-purity small pieces of terbium metal. Terbium is a soft silvery-white rare earth metal with a high melting point, low electrical resistivity, and good corrosion resistance in dry air. These properties make terbium useful for a variety of industrial and scientific applications. For example, terbium is commonly used in fluorescent lamps and magnets. Terbium pellets from Goodfellow provide researchers and engineers with a convenient form of high-purity terbium for experiments and product development involving rare earth metals. As part of Goodfellow's extensive range of metals in pellet form, these terbium pellets enable innovative applications across many fields.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Pellet/Lump
Maximum Lump Size Nominal

Material Properties for Metals

Atomic Properties
Element Value
Atomic number 65
Crystal structure Hexagonal close packed
Electronic structure Xe 4f⁹ 6s²
Valences shown 3,4
Atomic weight( amu ) 158.9254
Thermal neutron absorption cross-section( Barns ) 30
Photo-electric work function( eV ) 3
Atomic radius - Goldschmidt( nm ) 0.177
Ionisation potential( No./eV ) 2/ 11.52
Ionisation potential( No./eV ) 1/ 5.85
Mechanical Properties
Element Value
Material condition Polycrystalline
Poisson's ratio 0.265
Bulk modulus( GPa ) 40.8
Tensile modulus( GPa ) 57.5
Hardness - Vickers( kgf mm⁻² ) 60
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 116@20@20°C
Physical Properties
Element Value
Boiling point( C ) 3123
Density( gcm⁻³ ) 8.272@20°C
Thermal Properties
Element Value
Melting point( C ) 1356
Latent heat of evaporation( J g⁻¹ ) 1840
Latent heat of fusion( J g⁻¹ ) 103
Specific heat( J K⁻¹ kg⁻¹ ) 183@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 11.1@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 7@0-100°C

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