品牌: Goodfellow纯度含量: 99.5%产地: 英国
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| 品牌: | Goodfellow | | 纯度含量: | 99.5% | | 产地: | 英国 |
产品介绍 | 订货号 | 包装规格 | | Weight | | 449-004-67 | 50 g | | 013-033-66 | 100 g | | 603-870-59 | 200 g | | 733-765-56 | 500 g | | 382-072-46 | 1000 g |
产品参数 | Maximum Flake size[最大薄片尺寸] | 25mm | | Purity[纯度] | 99.5% | | Weight[重量] | 50 g - 1000 g | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Polycrystalline ) | 118.0 | | Hardness - Mohs ( Polycrystalline ) | 5.00 | | Material condition | Polycrystalline | | Poisson's ratio ( Polycrystalline ) | 0.240 | | Tensile modulus ( GPa ) ( Polycrystalline ) | 191.00 | | Atomic Properties(原子属性) | | Atomic number | 25 | | Atomic weight ( amu ) | 54.93800 | | Crystal structure | Body Centred Cubic | | Electronic structure | Ar3d⁵4s² | | Ionisation potential ( No./eV ) | 2 / 15.64 | | Ionisation potential ( No./eV ) | 3 / 33.67 | | Ionisation potential ( No./eV ) | 4 / 51.2 | | Ionisation potential ( No./eV ) | 6 / 95 | | Ionisation potential ( No./eV ) | 5 / 72.4 | | Ionisation potential ( No./eV ) | 1 / 7.43 | | Photo-electric work function ( eV ) | 3.80 | | Thermal neutron absorption cross-section ( Barns ) | 13.3000 | | Valences shown | 1 , 2, 3, 4, 6, 7 | | Physical Properties(物理性质) | | Boiling point ( C ) | 1962 | | Density ( g cm⁻³ ) | 7.400 @20℃ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 23.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 4207 | | Latent heat of fusion ( J g⁻¹ ) | 267.00 | | Melting point ( C ) | 1244.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 477.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 7.81 @0-100℃ | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 160@20℃ |
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