硒,块, Se, 3mm Max. Lump Size, Pellets, 5N
| 品牌: |
Goodfellow |
| 纯度含量: |
99.999% |
| 产地: |
英国 |
半岛bd体育手机客户端 介绍
| 订货号 |
包装规格 |
| Weight |
| 107-634-56 |
20g |
| 454-316-47 |
50g |
| 789-555-32 |
100g |
| 929-126-25 |
200g |
| 253-060-93 |
300g |
| 912-152-02 |
400g |
| 563-997-02 |
500g |
| 363-694-29 |
1000g |
| 619-587-24 |
1500g |
| 167-039-44 |
2000g |
半岛bd体育手机客户端 参数
| High Purity[纯度] |
99.999% |
| Maximum Lump Size[] |
3mm |
| Product Shape[形状] |
Pellets |
| Weight[重量] |
20g - 2000g |
| Typical Analysis(典型分析) |
| Ag |
0.2 PPM |
| Al |
<0.1 PPM |
| B |
<0.1 PPM |
| Ba |
<0.1 PPM |
| Be |
<0.01 PPM |
| Bi |
<0.05 PPM |
| Ca |
0.2 PPM |
| Cd |
<0.01 PPM |
| Co |
<0.1 PPM |
| Cr |
<0.05 PPM |
| Cu |
0.6 PPM |
| Fe |
1 PPM |
| Li |
<0.01 PPM |
| Mg |
0.06 PPM |
| Mn |
<0.01 PPM |
| Mo |
<0.1 PPM |
| Na |
<0.1 PPM |
| Ni |
<0.1 PPM |
| Pb |
<0.1 PPM |
| Si |
<1 PPM |
| Sn |
<0.1 PPM |
| Te |
<20 PPM |
| Ti |
<0.05 PPM |
| V |
<0.05 PPM |
| Zn |
<0.5 PPM |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
37.000 @0-100℃ |
| Latent heat of evaporation ( J g?? ) |
333 |
| Latent heat of fusion ( J g?? ) |
69.00 |
| Melting point ( C ) |
217.00 |
| Specific heat ( J K?? kg?? ) |
321.0 @25℃ |
| Thermal conductivity ( W m?? K?? ) |
0.50 @0-100℃ |
| Atomic Properties(原子属性) |
| Atomic number |
34 |
| Atomic weight ( amu ) |
78.96000 |
| Crystal structure |
Hexagonal |
| Electronic structure |
Ar3d??4s?4p? |
| Ionisation potential ( No./eV ) |
4 / 42.9 |
| Ionisation potential ( No./eV ) |
6 / 81.7 |
| Ionisation potential ( No./eV ) |
5 / 68.3 |
| Ionisation potential ( No./eV ) |
1 / 9.75 |
| Ionisation potential ( No./eV ) |
3 / 30.8 |
| Ionisation potential ( No./eV ) |
2 / 21.2 |
| Natural isotope distribution ( Mass No./% ) |
76 / 9.0 |
| Natural isotope distribution ( Mass No./% ) |
82 / 9.2 |
| Natural isotope distribution ( Mass No./% ) |
74 / 0.9 |
| Natural isotope distribution ( Mass No./% ) |
80 / 49.8 |
| Natural isotope distribution ( Mass No./% ) |
77 / 7.6 |
| Natural isotope distribution ( Mass No./% ) |
78 / 23.5 |
| Photo-electric work function ( eV ) |
5.90 |
| Thermal neutron absorption cross-section ( Barns ) |
12.2000 |
| Valences shown |
-2 ,4,6 |
| Physical Properties(物理性质) |
| Boiling point ( C ) |
685 |
| Density ( g cm?? ) |
4.790 @20℃ |
| Mechanical Properties(机械性能) |
| Bulk modulus ( GPa ) ( Polycrystalline ) |
8.3 |
| Hardness - Mohs ( Polycrystalline ) |
2.00 |
| Material condition |
Polycrystalline |
| Poisson's ratio ( Polycrystalline ) |
0.447 |
| Tensile modulus ( GPa ) ( Polycrystalline ) |
58.00 |
| Electrical Properties(电气特性) |
| Electrical resistivity ( μOhmcm ) |
12@20℃ |
环境
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|
|
Goodfellow（顾特服）
电话:点击&查看18024074014
地址:
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