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CaHg2

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CaHg2
别名 Hg2Ca
识别
CAS号 39461-25-1  checkY
性质
化学式 CaHg2
摩尔质量 441.26 g·mol⁻¹
外观 晶体
密度 9.8 g·cm−3
熔点 746 °C(1019 K)
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

CaHg2形成的金属间化合物,熔点746 °C。[1]

制备

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CaHg2可由相应的单质在惰性气氛中按化学计量比反应得到:

结构

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CaHg2三斜晶系空间群P 3m1)或六方晶系(空间群P 6/mmm)结晶,晶胞参数a = 0.4894 nm,c = 0.3571 nm,Z = 1,具有CeCd2或AlB2结构。 [1][2][3][4]

参考文献

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  1. ^ 1.0 1.1 Диаграммы состояния двойных металлических систем 1. М.: Машиностроение. Под ред. Н. П. Лякишева. 1996. ISBN 5-217-02688-X (俄语). 
  2. ^ B. Predel. Ca-Hg (Calcium-Mercury) 5c Landolt-Börnstein - Group IV Physical Chemistry. 1993: 1–2 (俄语). 
  3. ^ C. Guminski. The Ca-Hg (calcium-mercury) system 14 Journal of Phase Equilibria. 1993: 90–96 (俄语). 
  4. ^ G. Bruzzone, F. Merlo. The calcium-mercury system 32 Journal of the Less Common Metals. 1973: 237–241 (俄语). 
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