• 硒粉/高純硒 [7782-49-2]

  • 英文名:Selenium
  • 別名:精料精,硒
  • CAS號:7782-49-2 分子式:SE 分子量:78.96
T130500-100g 硒粉/高純硒 [7782-49-2] 5N 100g 480.00 促銷價:336.00
T130502-25g 硒粉/高純硒 [7782-49-2] 5N 25g 192.00
T130505-100g 硒粉/高純硒 [7782-49-2] 6N 100g 655.00 促銷價:458.50
T130503-25g 硒粉/高純硒 [7782-49-2] 6N 25g 220.00
T130506-100g 硒粉/高純硒 [7782-49-2] 99.9% 100g 280.00
T130505-25g 硒粉/高純硒 [7782-49-2] 99.9% 25g 75.00
T130509-500g 硒粉/高純硒 [7782-49-2] AR 500g 1180.00
T130503-100g 硒粉/高純硒 [7782-49-2] AR 100g 270.00
T130504-25g 硒粉/高純硒 [7782-49-2] AR 25g 72.00
訂貨編號 商品名稱 規格 包裝 單價 促銷價 會員價 數量
T130500-100g 硒粉/高純硒 [7782-49-2] 5N 100g 480.00 336.00 登錄可見
T130500-100g 硒粉/高純硒 [7782-49-2] 5N 100g 480.00 促銷價:336.00
T130502-25g 硒粉/高純硒 [7782-49-2] 5N 25g 192.00 192.00 登錄可見
T130502-25g 硒粉/高純硒 [7782-49-2] 5N 25g 192.00
T130505-100g 硒粉/高純硒 [7782-49-2] 6N 100g 655.00 458.50 登錄可見
T130505-100g 硒粉/高純硒 [7782-49-2] 6N 100g 655.00 促銷價:458.50
T130503-25g 硒粉/高純硒 [7782-49-2] 6N 25g 220.00 220.00 登錄可見
T130503-25g 硒粉/高純硒 [7782-49-2] 6N 25g 220.00
T130506-100g 硒粉/高純硒 [7782-49-2] 99.9% 100g 280.00 280.00 登錄可見
T130506-100g 硒粉/高純硒 [7782-49-2] 99.9% 100g 280.00
T130505-25g 硒粉/高純硒 [7782-49-2] 99.9% 25g 75.00 75.00 登錄可見
T130505-25g 硒粉/高純硒 [7782-49-2] 99.9% 25g 75.00
T130509-500g 硒粉/高純硒 [7782-49-2] AR 500g 1180.00 1180.00 登錄可見
T130509-500g 硒粉/高純硒 [7782-49-2] AR 500g 1180.00
T130503-100g 硒粉/高純硒 [7782-49-2] AR 100g 270.00 270.00 登錄可見
T130503-100g 硒粉/高純硒 [7782-49-2] AR 100g 270.00
T130504-25g 硒粉/高純硒 [7782-49-2] AR 25g 72.00 72.00 登錄可見
T130504-25g 硒粉/高純硒 [7782-49-2] AR 25g 72.00
  •  訂貨編號
  •  商品名稱
  •  規格
  •  包裝
  •  單價
  •  促銷價
  •  會員價
  •  數量

化學性質

硒有多種結晶形態。有深紅色到黑色粉末,有深紅色透明結晶,也有灰色到黑色有光澤的六方體結晶,硬而脆,其中以六方透明結晶為穩定。在空氣中燃燒發出亮藍色火焰而成二氧化硒。不溶于水、醇,能溶于二硫化碳、濃硫酸、硝酸、氫氧化堿或硫化堿溶液,不溶于水和醇。 熔點: 217℃ 沸點:685℃

質量標準

  

AR,99.5% metals basis:


外觀Appearance                          Dark Grey to Black Powder
X-射線衍射分析X-Ray Diffraction         Conforms to Structure
純度Purity                              ≥99.5% Based on Trace Metals Impurities of ICP
ICP Assay                               Confirms Hafnium component
痕量金屬分析total metallic impurities   ≤5000ppm by ICP Atomic emission
平均粒徑Average Particle Size           200 micron



≥99.99% metals basis,-100mesh,powder:


外觀Appearance                          Grey To Black
純度Purity                              ≥99.99% Based on Trace Metals Impurities
粒徑Size                                ≤150.00 micron  
ICP:                                    Confirms Selenium Component Confirmed
痕量金屬分析Trace Metal Analysis        ≤100.0 ppm


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


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


≥99.9999% metals basis:


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

  

危險性質

WGK Germany  2
RTECS  VS7700000
PackingGroup  III
危險品標志  T
危險類別碼  36/38-53-33-23/25
安全說明  26-61-45-28-20/21-28A

  

用途及存儲

凱氏定氮用催化劑,無機合成脫氫劑。工業上用于制半導體材料、光度計、光電管及其他光學儀器、整流器、硒感光板、復印硒鼓、合金、搪瓷和玻璃等用。

  密封干燥保存。