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硒粉/高纯硒

硒粉/高纯硒 [7782-49-2]

  • Selenium
  • CAS:7782-49-2      
  • 分子式:SE
  • 分子量:78.96
  • MDL:MFCD00134090
  • EINECS:231-957-4
  • 别名:精料精,硒
上一个:亚硒酸
下一个:EYHX
产品货号商品名称规格包装售价(RMB)促销价(RMB)库存量数量操作备注
H1141753硒粉/高纯硒 [7782-49-2]AR 100g270.00->10 CC A494 JA49 CH
H1141752硒粉/高纯硒 [7782-49-2]5N25g192.00->10 CC A494 JA49 CH
H1141750硒粉/高纯硒 [7782-49-2]5N100g480.00
促销价
336.00
>10 CC C54 MG CH
H1141743硒粉/高纯硒 [7782-49-2]6N25g220.00->10 JA49 CH
H1141745硒粉/高纯硒 [7782-49-2]6N 100g655.00
促销价
458.00
>10 JA49 CH
H1181019硒粉/高纯硒 [7782-49-2]AR 500g1180.00->10
H1181124硒粉/高纯硒 [7782-49-2]AR 25g72.00->10
H1181125硒粉/高纯硒 [7782-49-2]99.9%25g75.00->10
H1181126硒粉/高纯硒 [7782-49-2]99.9%100g280.00->10
化学性质质量标准危险性质用途及储存
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)

  
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