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Ytterbium ( Yb )

Material Information

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General Description:  

Ytterbium was discovered in 1878 by J.C.G. de Marignac in Geneva, Switzerland.

Ytterbium is a soft, silvery-white metal of the lanthanide group. It has an abundance of 3.3 ppm in the earth's crust and is always found in combination with other lanthanides. The metal is soft and malleable, oxidises slowly in air and reacts with water. Applications of the metal are limited, research being the principal area of its use.
   

Atomic Properties

Atomic number 70
Atomic radius - Goldschmidt ( nm ) 0.193
Atomic weight ( amu ) 173.04
Crystal structure Hexagonal close packed
Electronic structure Xe 4f14 6s2
Ionization potential No. eV
1 6.25
2 12.2
3 25.2
Natural isotope distribution Mass No. %
168 0.1
170 3.1
171 14.3
172 21.9
173 16.2
174 31.7
176 12.7
Thermal neutron absorption cross-section ( Barns ) 37
Valences shown 2, 3

Electrical Properties

Electrical resistivity @20C ( µOhmcm ) 28
Temperature coefficient @0-100C ( K-1 ) 0.0013

Mechanical Properties

Material condition Polycrystalline
Bulk modulus ( GPa ) 13.5
Hardness - Brinell 25
Poisson's ratio 0.280
Tensile modulus ( GPa ) 17.8
Tensile strength ( MPa ) 68.9
Yield strength ( MPa ) 65.5

Physical Properties

Boiling point ( C ) 1194
Density @20C ( g cm-3 ) 6.977
Melting point ( C ) 819

Thermal Properties

Coefficient of thermal expansion @0-100C ( x10-6 K-1 ) 25.0
Latent heat of evaporation ( J g-1 ) 921
Latent heat of fusion ( J g-1 ) 53.2
Specific heat @25C ( J K-1 kg-1 ) 145
Thermal conductivity @0-100C ( W m-1 K-1 ) 34.9
All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

Buy Ytterbium on-line

Standard products are available in these forms
Foil Lump Powder Rod Sputtering Target Wire
Foil Lump Powder Rod Sputtering Target Wire

Choose a form to search our on-line catalog  

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