• 硒粉/高纯硒 [7782-49-2]

  • 英文名:Selenium
  • 别名:精料精,硒
  • CAS号:7782-49-2 分子式:SE 分子量:78.96
T130509-500g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 500g 666.00 促销价:419.58
T130503-100g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 100g 291.00 促销价:183.33
T130500-25g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 25g 108.00 促销价:68.04
T130505-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 促销价:1522.05
T130500-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 促销价:448.22
T130502-25g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 促销价:151.11
T130503-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 促销价:625.61
T130506-100g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 促销价:249.66
T130505-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 促销价:2210.44
T130503-500g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 500g 1971.00 促销价:1438.83
T130502-100g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 100g 614.00 促销价:448.22
T130501-25g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 25g 207.00 促销价:151.11
订货编号 商品名称 规格 包装 单价 促销价 会员价 数量
T130509-500g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 500g 666.00 419.58 登录可见
T130509-500g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 500g 666.00 促销价:419.58
T130503-100g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 100g 291.00 183.33 登录可见
T130503-100g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 100g 291.00 促销价:183.33
T130500-25g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 25g 108.00 68.04 登录可见
T130500-25g 硒粉/高纯硒 [7782-49-2] 99.9% metals basis 25g 108.00 促销价:68.04
T130505-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 1522.05 登录可见
T130505-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 促销价:1522.05
T130500-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 448.22 登录可见
T130500-100g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 促销价:448.22
T130502-25g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 151.11 登录可见
T130502-25g 硒粉/高纯硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 促销价:151.11
T130503-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 625.61 登录可见
T130503-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 促销价:625.61
T130506-100g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 249.66 登录可见
T130506-100g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 促销价:249.66
T130505-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 2210.44 登录可见
T130505-25g 硒粉/高纯硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 促销价:2210.44
T130503-500g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 500g 1971.00 1438.83 登录可见
T130503-500g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 500g 1971.00 促销价:1438.83
T130502-100g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 100g 614.00 448.22 登录可见
T130502-100g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 100g 614.00 促销价:448.22
T130501-25g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 25g 207.00 151.11 登录可见
T130501-25g 硒粉/高纯硒 [7782-49-2] ≥99.999% metals basis,粒径:1-6mm 25g 207.00 促销价:151.11
  •  订货编号
  •  商品名称
  •  规格
  •  包装
  •  单价
  •  促销价
  •  会员价
  •  数量

化学性质

硒有多种结晶形态。有深红色到黑色粉末,有深红色透明结晶,也有灰色到黑色有光泽的六方体结晶,硬而脆,其中以六方透明结晶为稳定。在空气中燃烧发出亮蓝色火焰而成二氧化硒。不溶于水、醇,能溶于二硫化碳、浓硫酸、硝酸、氢氧化碱或硫化碱溶液,不溶于水和醇。 熔点: 217℃ 沸点:685℃

质量标准

  

AR,99.5% metals basis:


外观Appearance                          Dark Grey to Black Powder
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.5% Based on Trace Metals Impurities of ICP
ICP Assay                               Confirms Hafnium component
痕量金属分析total metallic impurities   ≤5000ppm by ICP Atomic emission
平均粒径Average Particle Size           200 micron



≥99.99% metals basis,-100mesh,powder:


外观Appearance                          Grey To Black
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
粒径Size                                ≤150.00 micron  
ICP:                                    Confirms Selenium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤100.0 ppm


≥99.999% metals basis,-100mesh,powder:


外观Appearance                          Grey Pellets
纯度Purity                              ≥99.999% Based on Trace Metals Impurities
粒径Size                                ≤150.00 micron
ICP:                                    Confirms Selenium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤10.0 ppm
(Ca、Fe、Ti、Zn、Se、Cu、As、Pb、S)


≥99.9999% metals basis:


外观Appearance                          Irregular particles
纯度Purity                              ≥99.9999% Based on Trace Metals Impurities
ICP:                                    Confirms Selenium Component Confirmed
痕量金属分析Trace Metal Analysis        ≤1.0 ppm
(杂质包括Ag、Al、Cd、Mg、Ni、Sn、Au、Sr、Ca、Fe、Ti、Zn、Se、Cu、As、Pb、S等)

  

危险性质

WGK Germany  2
RTECS  VS7700000
PackingGroup  III
危险品标志  T
危险类别码  36/38-53-33-23/25
安全说明  26-61-45-28-20/21-28A

  

用途及存储

凯氏定氮用催化剂,无机合成脱氢剂。工业上用于制半导体材料、光度计、光电管及其他光学仪器、整流器、硒感光板、复印硒鼓、合金、搪瓷和玻璃等用。

  密封干燥保存。