镓,块, Ga, 25mm Max. Lump Size, 4N
| 品牌: | Goodfellow | | 纯度含量: | 99.99% | | 产地: | 英国 |
产品介绍
| 订货号 | 包装规格 | | Weight | | 608-371-05 | 10g | | 046-383-26 | 20g | | 797-907-09 | 50g | | 738-377-38 | 100g | | 328-466-93 | 500g |
产品参数 | Maximum Lump Size[] | 25mm | | Purity[纯度] | 99.99% | | Weight[重量] | 10g - 500g | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 18.300 @0-100℃ | | Latent heat of evaporation ( J g⁻¹ ) | 3984 | | Latent heat of fusion ( J g⁻¹ ) | 80.10 | | Melting point ( C ) | 29.80 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 330.0 @25℃ | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 33.00 - 41.00 @0-100℃ | | Mechanical Properties(机械性能) | | Hardness - Mohs ( Polycrystalline ) | 1.50 - 2.50 | | Material condition | Polycrystalline | | Poisson's ratio ( Polycrystalline ) | 0.470 | | Tensile modulus ( GPa ) ( Polycrystalline ) | 9.81 | | Atomic Properties(原子属性) | | Atomic number | 31 | | Atomic weight ( amu ) | 69.72000 | | Crystal structure | Orthorhombic | | Electronic structure | Ar3d¹⁰4s²4p¹ | | Ionisation potential ( No./eV ) | 4 / 64.0 | | Ionisation potential ( No./eV ) | 2 / 20.51 | | Ionisation potential ( No./eV ) | 1 / 5.99 | | Ionisation potential ( No./eV ) | 3 / 30.71 | | Natural isotope distribution ( Mass No./% ) | 71 / 40 | | Natural isotope distribution ( Mass No./% ) | 69 / 60 | | Photo-electric work function ( eV ) | 4.20 | | Thermal neutron absorption cross-section ( Barns ) | 3.1000 | | Valences shown | 2 , 3 | | Electrical Properties(电气特性) | | Electrical resistivity ( μOhmcm ) | 15.5@20℃ | | Superconductivity critical temperature ( K ) | 1.0800 | | Temperature coefficient ( K⁻¹ ) | 0.00400 @0-100℃ | | Physical Properties(物理性质) | | Boiling point ( C ) | 2205 | | Density ( g cm⁻³ ) | 5.904 @20℃ |
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