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二硫代亚铬酸钾

二硫代亚铬酸钾
别名 硫化铬钾
识别
CAS号 12168-13-7  checkY
性质
化学式 KCrS2
摩尔质量 155.22 g·mol⁻¹
相关物质
其他阴离子 亚铬酸钾
二硒代亚铬酸钾
其他阳离子 二硫代亚铬酸钠
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

二硫代亚铬酸钾是一种无机化合物,化学式为KCrS2

制备及性质

它可由碳酸钾三氧化二铬硫化氢气氛中加热反应得到:

在800~900 °C加热碳酸钾的混合物[1],或者重铬酸钾氢气-硫化氢气氛中于600 °C还原,都能得到KCrS2[2]

它是四方晶系的晶体,空间群R3m,晶胞参数a=0.3618 nm, c=2.116 nm。它是极易潮解的铁磁性物质,居里点112 K。[3][2]

参考文献

  1. ^ Nirmalesh Naveen, Woon Bae Park, Satendra Pal Singh, Su Cheol Han, Docheon Ahn, Kee-Sun Sohn, Myoungho Pyo. KCrS2 Cathode with Considerable Cyclability and High Rate Performance: The First K+ Stoichiometric Layered Compound for Potassium-Ion Batteries. Small. 2018, 14 (49): 1803495 [2019-02-05]. ISSN 1613-6829. doi:10.1002/smll.201803495. (原始内容存档于2020-02-03) (英语). 
  2. ^ 2.0 2.1 B. Van Laar, F. M. R. Engelsman. The magnetic structure of KCrS2. Journal of Solid State Chemistry. 1973-03-01, 6 (3): 384–386 [2019-02-05]. ISSN 0022-4596. doi:10.1016/0022-4596(73)90227-2. (原始内容存档于2020-02-03). 
  3. ^ Справочник химика 1 2-е изд., испр. М.-Л.: Химия. Редкол.: Никольский Б.П. и др. 1966 (俄语). 

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