High Purity[纯度] | 100.0% |
Maximum Lump Size[] | 25mm |
Weight[重量] | 10g - 700g |
Thermal Properties(热性能) |
Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 18.300 @0-100℃ |
Latent heat of evaporation ( J g⁻¹ ) | 3984 |
Latent heat of fusion ( J g⁻¹ ) | 80.10 |
Melting point ( C ) | 29.80 |
Specific heat ( J K⁻¹ kg⁻¹ ) | 330.0 @25℃ |
Thermal conductivity ( W m⁻¹ K⁻¹ ) | 33.00 - 41.00 @0-100℃ |
Mechanical Properties(机械性能) |
Hardness - Mohs ( Polycrystalline ) | 1.50 - 2.50 |
Material condition | Polycrystalline |
Poisson's ratio ( Polycrystalline ) | 0.470 |
Tensile modulus ( GPa ) ( Polycrystalline ) | 9.81 |
Atomic Properties(原子属性) |
Atomic number | 31 |
Atomic weight ( amu ) | 69.72000 |
Crystal structure | Orthorhombic |
Electronic structure | Ar3d¹⁰4s²4p¹ |
Ionisation potential ( No./eV ) | 4 / 64.0 |
Ionisation potential ( No./eV ) | 2 / 20.51 |
Ionisation potential ( No./eV ) | 1 / 5.99 |
Ionisation potential ( No./eV ) | 3 / 30.71 |
Natural isotope distribution ( Mass No./% ) | 71 / 40 |
Natural isotope distribution ( Mass No./% ) | 69 / 60 |
Photo-electric work function ( eV ) | 4.20 |
Thermal neutron absorption cross-section ( Barns ) | 3.1000 |
Valences shown | 2 , 3 |
Electrical Properties(电气特性) |
Electrical resistivity ( μOhmcm ) | 15.5@20℃ |
Superconductivity critical temperature ( K ) | 1.0800 |
Temperature coefficient ( K⁻¹ ) | 0.00400 @0-100℃ |
Physical Properties(物理性质) |
Boiling point ( C ) | 2205 |
Density ( g cm⁻³ ) | 5.904 @20℃ |