May contain hydrogen and/or the metal hydride.
| 订货号 |
包装规格 |
| Weight |
| 671-415-82 |
25g |
| 964-167-69 |
50g |
半岛bd体育手机客户端 参数
| Maximum Particle Size[最大粒度] |
400μm |
| Purity[纯度] |
99.9% |
| Weight[重量] |
25g - 50g |
| Typical Analysis(典型分析) |
| Al |
20 PPM |
| Ca |
5 PPM |
| Cu |
1 PPM |
| Fe |
10 PPM |
| Mg |
<1 PPM |
| Ni |
10 PPM |
| Pb |
1 PPM |
| Si |
5 PPM |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
3457 |
| Density ( g cm?? ) |
6.174 @20℃ |
| Atomic Properties(原子属性) |
| Atomic number |
57 |
| Atomic weight ( amu ) |
138.90550 |
| Crystal structure |
Hexagonal Close Packed/Face Centred Cubic |
| Electronic structure |
Xe5d?6s? |
| Ionisation potential ( No./eV ) |
3 / 19.18 |
| Ionisation potential ( No./eV ) |
1 / 5.58 |
| Ionisation potential ( No./eV ) |
2 / 11.06 |
| Natural isotope distribution ( Mass No./% ) |
139 / 99.91 |
| Natural isotope distribution ( Mass No./% ) |
138 / 0.09 |
| Photo-electric work function ( eV ) |
3.50 |
| Thermal neutron absorption cross-section ( Barns ) |
8.9000 |
| Valences shown |
3 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
57@20℃ |
| Superconductivity critical temperature ( K ) |
4.8800 |
| Temperature coefficient ( K?? ) |
0.00218 @0-100℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) |
24.8 |
| Hardness - Vickers ( kgf mm?? ) ( Polycrystalline ) |
40 |
| Material condition |
Polycrystalline |
| Poisson's ratio ( Polycrystalline ) |
0.280 |
| Tensile modulus ( GPa ) ( Polycrystalline ) |
37.90 |
| Tensile strength ( MPa ) ( Polycrystalline ) |
131.00 |
| Yield strength ( MPa ) ( Polycrystalline ) |
124.0 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
4.900 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
2897 |
| Latent heat of fusion ( J g?? ) |
60.20 |
| Melting point ( C ) |
921.00 |
| Specific heat ( J K?? kg?? ) |
197.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
13.40 @0-100℃ |
易燃
与火焰接触后点燃的化学品，或与水接触后逸出高度易燃气体的化学品。
