硼,颗粒, B, 2N
关注：2692
品牌：Goodfellow
产地：英国
纯度含量：99.0%
| 订货号 | 包装规格 |
| Weight | |
| 284-607-52 | 20 g |
| 256-203-53 | 50 g |
| 537-716-10 | 100 g |
产品参数
| Nominal Granule Size[标称颗粒大小] | 15 |
| Purity[纯度] | 99.0% |
| Weight[重量] | 20 g - 100 g |
| Physical Properties(物理性质) | |
| Boiling point ( C ) | 3700 |
| Density ( g cm⁻³ ) | 2.340 - 2.370 @20℃ |
| Thermal Properties(热性能) | |
| Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 8.300 @0-100℃ |
| Latent heat of evaporation ( J g⁻¹ ) | 35000 |
| Latent heat of fusion ( J g⁻¹ ) | 2090.00 |
| Melting point ( C ) | 2180.00 |
| Specific heat ( J K⁻¹ kg⁻¹ ) | 1030.0 @25℃ |
| Atomic Properties(原子属性) | |
| Atomic number | 5 |
| Atomic weight ( amu ) | 10.81000 |
| Crystal structure | Tetragonal |
| Electronic structure | He2s²2p¹ |
| Ionisation potential ( No./eV ) | 4 / 259 |
| Ionisation potential ( No./eV ) | 2 / 25.2 |
| Ionisation potential ( No./eV ) | 1 / 8.30 |
| Ionisation potential ( No./eV ) | 5 / 340 |
| Ionisation potential ( No./eV ) | 3 37.9 |
| Natural isotope distribution ( Mass No./% ) | 11 / 80.2 |
| Natural isotope distribution ( Mass No./% ) | 10 / 19.8 |
| Photo-electric work function ( eV ) | 4.50 |
| Thermal neutron absorption cross-section ( Barns ) | 672.0000 |
| Valences shown | 3 |
| Mechanical Properties(机械性能) | |
| Hardness - Mohs ( Arc melted ) | 9.50 |
| Material condition | Arc Melted |
| Tensile modulus ( GPa ) ( Arc melted ) | 441.00 |
| Tensile strength ( MPa ) ( Arc melted ) | 1580.00 - 2410.00 |
| Electrical Properties(电气特性) | |
| Electrical resistivity ( μOhmcm ) | 1.8x10¹²@27℃ |
产品发布日期：2025.03.18
Goodfellow（顾特服）