品牌: Goodfellow纯度含量: 99.0%产地: 英国
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| 品牌: | Goodfellow | | 纯度含量: | 99.0% | | 产地: | 英国 |
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介绍 Packed in oil. | 订货号 | 包装规格 | | Length (Round) | | 455-547-99 | 165mm |
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参数 | Diameter[直径] | 12.7mm | | Length[长度] | 165mm | | Purity[纯度] | 99.0% | | Typical Analysis(典型分析) | | Al | 5 PPM | | Ca | 400 PPM | | Fe | 50 PPM | | K | 80 PPM | | Na | 7000 PPM | | Si | 10 PPM | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 56.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 19600 | | Latent heat of fusion ( J g⁻¹ ) | 422.00 | | Melting point ( C ) | 180.50 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 3560.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 84.80 @0-100℃ | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 9.29@20℃ | | Temperature coefficient ( K⁻¹ ) | 0.00435 @0-100℃ | | Thermal emf against Pt (cold 0C - hot 100C) ( mV ) | 1.82 | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Polycrystalline ) | 11.1 | | Hardness - Vickers ( kgf mm⁻² ) ( Polycrystalline ) | < 5 | | Material condition | Polycrystalline | | Poisson's ratio ( Polycrystalline ) | 0.360 | | Tensile modulus ( GPa ) ( Polycrystalline ) | 4.91 | | Atomic Properties(原子属性) | | Atomic number | 3 | | Atomic weight ( amu ) | 6.94100 | | Crystal structure | Body Centred Cubic | | Electronic structure | He2s¹ | | Ionisation potential ( No./eV ) | 2 / 75.6 | | Ionisation potential ( No./eV ) | 3 / 122.4 | | Ionisation potential ( No./eV ) | 1 / 5.39 | | Natural isotope distribution ( Mass No./% ) | 6 / 7.5 | | Natural isotope distribution ( Mass No./% ) | 7 / 92.5 | | Photo-electric work function ( eV ) | 2.40 | | Thermal neutron absorption cross-section ( Barns ) | 63.0000 | | Valences shown | 1 | | Physical Properties(物理性质) | | Boiling point ( C ) | 1342 | | Density ( g cm⁻³ ) | 0.534 @20℃ |
其他参数 公差 | 直径 | ≤10mm | ±10% |
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| 聚合物 | +20% / -10% | | 陶瓷 | +20% / -10% | |
| >10mm | ±5% | | 陶瓷 | +20% / -10% | | 聚合物 | +20% / -10% | |
| 长度 | <100mm | ±1mm |
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| ≥100mm | +5% / -1% |
腐蚀 与其接触时可破坏活组织的化学品。
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