| 订货号 |
包装规格 |
| Weight |
| 820-867-01 |
50g |
| 468-979-70 |
100g |
| 403-694-06 |
200g |
半岛bd体育手机客户端 参数
| Maximum Particle Size[最大粒度] |
150μm |
| Purity[纯度] |
99.97% |
| Weight[重量] |
50g - 200g |
| Typical Analysis(典型分析) |
| Ag |
1 PPM |
| Al |
5 PPM |
| Ca |
4 PPM |
| Cd |
5 PPM |
| Co |
1 PPM |
| Cr |
200 PPM |
| Cu |
8 PPM |
| Fe |
7 PPM |
| Mg |
1 PPM |
| Mn |
1 PPM |
| Mo |
10 PPM |
| Na |
2 PPM |
| Si |
2 PPM |
| Sn |
5 PPM |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
117@20℃ |
| Temperature coefficient ( K?? ) |
0.00460 @0-100℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) |
-7.34 |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) |
31.3 |
| Hardness - Vickers ( kgf mm?? ) ( Polycrystalline ) |
16 - 19 |
| Material condition |
Polycrystalline |
| Poisson's ratio ( Polycrystalline ) |
0.330 |
| Tensile modulus ( GPa ) ( Polycrystalline ) |
34.00 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
13.400 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
857 |
| Latent heat of fusion ( J g?? ) |
52.00 |
| Melting point ( C ) |
271.30 |
| Specific heat ( J K?? kg?? ) |
124.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
7.90 @0-100℃ |
| Atomic Properties(原子属性) |
| Atomic number |
83 |
| Atomic weight ( amu ) |
208.98040 |
| Crystal structure |
Rhombohedral |
| Electronic structure |
Xe4f??5d??6s?6p? |
| 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 |
| Photo-electric work function ( eV ) |
4.40 |
| Thermal neutron absorption cross-section ( Barns ) |
0.0340 |
| Valences shown |
3 , 5 |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
1560 |
| Density ( g cm?? ) |
9.800 @20℃ |
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。
