钪,粉末, Sc, 250μm最大粒度, 3N
| 品牌: | Goodfellow | | 纯度含量: | 99.9% | | 产地: | 英国 |
产品介绍
May contain hydrogen and/or the metal hydride. | 订货号 | 包装规格 | | Weight | | 139-059-29 | 1g | | 382-411-09 | 2g |
产品参数 | Maximum Particle Size[最大粒度] | 250μm | | Purity[纯度] | 99.9% | | Weight[重量] | 1g - 2g | | Typical Analysis(典型分析) | | Al | 20 PPM | | Ca | 100 PPM | | Cr | 5 PPM | | Cu | 2 PPM | | Fe | 10 PPM | | Mg | 1 PPM | | Mn | <1 PPM | | Ni | 50 PPM | | Si | 2 PPM | | Yb | 5 PPM | | Atomic Properties(原子属性) | | Atomic number | 21 | | Atomic weight ( amu ) | 44.95590 | | Crystal structure | Hexagonal Close Packed | | Electronic structure | Ar3d¹4s² | | 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⁻¹ ) | 0.00282 @0-100℃ | | Physical Properties(物理性质) | | Boiling point ( C ) | 2831 | | Density ( g cm⁻³ ) | 2.990 @20℃ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 12.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 7293 | | Latent heat of fusion ( J g⁻¹ ) | 357.00 | | Melting point ( C ) | 1541.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 557.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 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。
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