| 订货号 |
包装规格 |
| Weight |
| 615-432-01 |
1g |
| 281-037-56 |
2g |
| 929-008-75 |
5g |
半岛bd体育手机客户端 参数
| Maximum Lump Size[] |
25.4mm |
| Purity[纯度] |
96.0% |
| Weight[重量] |
1g - 5g |
| Atomic Properties(原子属性) |
| Atomic number |
21 |
| Atomic weight ( amu ) |
44.95590 |
| Crystal structure |
Hexagonal Close Packed |
| Electronic structure |
Ar3d?4s? |
| Ionisation potential ( No./eV ) |
3 / 24.8 |
| Ionisation potential ( No./eV ) |
5 / 91.7 |
| Ionisation potential ( No./eV ) |
4 / 73.5 |
| Ionisation potential ( No./eV ) |
6 / 111 |
| Ionisation potential ( No./eV ) |
1 / 6.54 |
| Ionisation potential ( No./eV ) |
2 / 12.8 |
| Photo-electric work function ( eV ) |
3.50 |
| Thermal neutron absorption cross-section ( Barns ) |
25.0000 |
| Valences shown |
3 |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Hard ) |
44.2 |
| Bulk modulus ( GPa ) ( Soft ) |
44.2 |
| Hardness - Brinell ( Hard ) |
136 |
| Hardness - Brinell ( Soft ) |
78 |
| Material condition |
Soft |
| Material condition |
Hard |
| Poisson's ratio ( Hard ) |
0.270 |
| Poisson's ratio ( Soft ) |
0.270 |
| Tensile modulus ( GPa ) ( Hard ) |
79.30 |
| Tensile modulus ( GPa ) ( Soft ) |
79.30 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
66@20℃ |
| Temperature coefficient ( K?? ) |
0.00282 @0-100℃ |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
2831 |
| Density ( g cm?? ) |
2.990 @20℃ |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
12.000 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
7293 |
| Latent heat of fusion ( J g?? ) |
357.00 |
| Melting point ( C ) |
1541.00 |
| Specific heat ( J K?? kg?? ) |
557.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
15.80 @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。
