钡,块, Ba, 25mm Max. Lump Size, 2N
| 品牌: | Goodfellow | | 纯度含量: | 99.0% | | 产地: | 英国 |
产品介绍
Packing Note: Packed in Oil | 订货号 | 包装规格 | | Weight | | 975-998-18 | 50g | | 999-770-78 | 100g | | 971-345-09 | 200g | | 307-669-78 | 500g |
产品参数 | Maximum Lump Size[] | 25mm | | Purity[纯度] | 99.0% | | Weight[重量] | 50g - 500g | | Atomic Properties(原子属性) | | Atomic number | 56 | | Atomic weight ( amu ) | 137.33000 | | Crystal structure | Body Centred Cubic | | Electronic structure | Xe6s² | | Ionisation potential ( No./eV ) | 1 / 5.21 | | Ionisation potential ( No./eV ) | 2 / 10.0 | | Natural isotope distribution ( Mass No./% ) | 135 / 6.6 | | Natural isotope distribution ( Mass No./% ) | 130 / 0.1 | | Natural isotope distribution ( Mass No./% ) | 136 / 7.9 | | Natural isotope distribution ( Mass No./% ) | 138 / 71.7 | | Natural isotope distribution ( Mass No./% ) | 132 / 0.1 | | Natural isotope distribution ( Mass No./% ) | 137 / 11.2 | | Natural isotope distribution ( Mass No./% ) | 134 / 2.4 | | Photo-electric work function ( eV ) | 2.50 | | Thermal neutron absorption cross-section ( Barns ) | 1.2000 | | Valences shown | 2 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 18.000 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 1100 | | Latent heat of fusion ( J g⁻¹ ) | 55.80 | | Melting point ( C ) | 725.00 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 192.0 @25℃ | | Mechanical Properties(机械性能) | | Bulk modulus ( GPa ) ( Polycrystalline ) | 9.7 | | Material condition | Polycrystalline | | Poisson's ratio ( Polycrystalline ) | 0.280 | | Tensile modulus ( GPa ) ( Polycrystalline ) | 12.80 | | Physical Properties(物理性质) | | Boiling point ( C ) | 1640 | | Density ( g cm⁻³ ) | 3.500 @20℃ |
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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Goodfellow（顾特服）
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