| 订货号 | 包装规格 |
| Weight |
| 934-941-77 | 10 g |
| 867-722-02 | 20 g |
| 465-256-20 | 50 g |
| 649-536-14 | 100 g |
半岛bd体育手机客户端
参数
| High Purity[纯度] | 99.998% |
| Maximum Particle Size[最大粒度] | 45μm |
| Weight[重量] | 10 g - 100 g |
| Typical Analysis(典型分析) |
| Al | <5 PPM |
| Ca | 1 PPM |
| Cu | <5 PPM |
| Fe | 5 PPM |
| Physical Properties(物理性质) |
| Boiling point ( C ) | 2355 |
| Density ( g cm⁻3 ) | 2.340 @20℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) | 100.0 |
| Hardness - Mohs ( Polycrystalline ) | 7.00 |
| Material condition | Polycrystalline |
| Poisson's ratio ( Polycrystalline ) | 0.420 |
| Tensile modulus ( GPa ) ( Polycrystalline ) | 113.00 |
| Atomic Properties(原子属性) |
| Atomic number | 14 |
| Atomic weight ( amu ) | 28.08550 |
| Crystal structure | Diamond |
| Electronic structure | Ne3s23p2 |
| Ionisation potential ( No./eV ) | 5 / 167 |
| Ionisation potential ( No./eV ) | 1 / 8.15 |
| Ionisation potential ( No./eV ) | 2 / 16.3 |
| Ionisation potential ( No./eV ) | 3 / 33.5 |
| Ionisation potential ( No./eV ) | 4 / 45.1 |
| Ionisation potential ( No./eV ) | 6 / 205 |
| Natural isotope distribution ( Mass No./% ) | 30 / 3.10 |
| Natural isotope distribution ( Mass No./% ) | 29 / 4.67 |
| Natural isotope distribution ( Mass No./% ) | 28 / 92.23 |
| Photo-electric work function ( eV ) | 4.20 |
| Thermal neutron absorption cross-section ( Barns ) | 0.1600 |
| Valences shown | 4 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) | 23x101⁰@20℃ |
| Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | -41.56 |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻1 ) | 4.700 - 7.600 @0-100℃ |
| Latent heat of evaporation ( J g⁻1 ) | 13700 |
| Latent heat of fusion ( J g⁻1 ) | 1650.00 |
| Melting point ( C ) | 1410.00 |
| Specific heat ( J K⁻1 kg⁻1 ) | 703.0 @25℃ |
| Thermal conductivity ( W m⁻1 K⁻1 ) | 80.00 - 150.00 @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。
