• 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
T130509-500g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 500g 666.00 促銷價:419.58
T130503-100g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 100g 291.00 促銷價:183.33
T130500-25g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 25g 108.00 促銷價:68.04
T130505-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 促銷價:1522.05
T130500-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 促銷價:448.22
T130502-25g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 促銷價:151.11
T130503-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 促銷價:625.61
T130506-100g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 促銷價:249.66
T130505-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 促銷價:2210.44
T130503-500g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 500g 1971.00 促銷價:1438.83
T130502-100g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 100g 614.00 促銷價:448.22
T130501-25g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 25g 207.00 促銷價:151.11
訂貨編號 商品名稱 規(guī)格 包裝 單價 促銷價 會員價 數(shù)量
T130509-500g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 500g 666.00 419.58 登錄可見
T130509-500g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 500g 666.00 促銷價:419.58
T130503-100g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 100g 291.00 183.33 登錄可見
T130503-100g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 100g 291.00 促銷價:183.33
T130500-25g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 25g 108.00 68.04 登錄可見
T130500-25g 硒粉/高純硒 [7782-49-2] 99.9% metals basis 25g 108.00 促銷價:68.04
T130505-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 1522.05 登錄可見
T130505-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 500g 2085.00 促銷價:1522.05
T130500-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 448.22 登錄可見
T130500-100g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 100g 614.00 促銷價:448.22
T130502-25g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 151.11 登錄可見
T130502-25g 硒粉/高純硒 [7782-49-2] 99.998% metals basis,100目 25g 207.00 促銷價:151.11
T130503-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 625.61 登錄可見
T130503-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 500g 857.00 促銷價:625.61
T130506-100g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 249.66 登錄可見
T130506-100g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 100g 342.00 促銷價:249.66
T130505-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 2210.44 登錄可見
T130505-25g 硒粉/高純硒 [7782-49-2] ≥99.99% metals basis,200目 2.5kg 3028.00 促銷價:2210.44
T130503-500g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 500g 1971.00 1438.83 登錄可見
T130503-500g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 500g 1971.00 促銷價:1438.83
T130502-100g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 100g 614.00 448.22 登錄可見
T130502-100g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 100g 614.00 促銷價:448.22
T130501-25g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 25g 207.00 151.11 登錄可見
T130501-25g 硒粉/高純硒 [7782-49-2] ≥99.999% metals basis,粒徑:1-6mm 25g 207.00 促銷價:151.11
  •  訂貨編號
  •  商品名稱
  •  規(guī)格
  •  包裝
  •  單價
  •  促銷價
  •  會員價
  •  數(shù)量

化學(xué)性質(zhì)

硒有多種結(jié)晶形態(tài)。有深紅色到黑色粉末,有深紅色透明結(jié)晶,也有灰色到黑色有光澤的六方體結(jié)晶,硬而脆,其中以六方透明結(jié)晶為穩(wěn)定。在空氣中燃燒發(fā)出亮藍(lán)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(zhì)量標(biāo)準(zhǔn)

  

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(zhì)包括Ag、Al、Cd、Mg、Ni、Sn、Au、Sr、Ca、Fe、Ti、Zn、Se、Cu、As、Pb、S等)

  

危險性質(zhì)

WGK Germany  2
RTECS  VS7700000
PackingGroup  III
危險品標(biāo)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(jī)合成脫氫劑。工業(yè)上用于制半導(dǎo)體材料、光度計、光電管及其他光學(xué)儀器、整流器、硒感光板、復(fù)印硒鼓、合金、搪瓷和玻璃等用。

  密封干燥保存。