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高纯锗环(Ge)

高纯锗环(Ge)
  • 高纯锗环(Ge)
高纯锗环(Ge)essential information
Molecular formulaGe
purity99.999%
CAS No7440-56-4
Molar mass72.64
density5.35g/cm3
melting point937℃
boiling point2830℃
Solubility (water)不溶于水

高纯锗环(Ge)Product overview

锗(Germanium)是一种化学元素,元素符号Ge,原子序数32,原子量72.64,在化学元素周期表中位于第4周期、第IVA族。锗单质是一种灰白色准金属,有光泽,质硬,属于碳族,化学性质与同族的锡与硅相近,不溶于水、盐酸、稀苛性碱溶液,溶于王水、浓硝酸或硫酸,具有两性,故溶于熔融的碱、过氧化碱、碱金属硝酸盐或碳酸盐,在空气中较稳定。

在自然界中,锗共有五种稳定核素:70Ge,72Ge,73Ge,74Ge,76Ge,在700℃以上与氧作用生成GeO2,在1000℃以上与氢作用,细粉锗能在氯或溴中燃烧,锗是优良半导体,可作高频率电流的检波和交流电的整流用,此外,可用于红外光材料、精密仪器、催化剂。 

锗粉末状呈暗蓝色,结晶状,为银白色脆金属。化合价+2和+4。第一电离能7.899eV,是一种稀有金属,重要的半导体材料,不溶于水。


高纯锗环(Ge)Product application

红外光学,半导体薄膜

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