查看“︁二硫代亚铬酸钾”︁的源代码

{{Chembox
| Name = 
| NameEn = 
| ImageFile = 
|  ImageSize = 
|  ImageAlt = 
| IUPACName = 
| IUPACNameZh = 
| OtherNames = 硫化铬钾
| Section1 = {{Chembox Identifiers
|   CASNo = 12168-13-7
|   CASNo_Ref = {{cascite|correct|CAS}}
|   PubChem = 
|   SMILES =  }}
| Section2 = {{Chembox Properties
|   Formula = KCrS<sub>2</sub>
|   MolarMass = 155.22
|   Appearance = 
|   Density = 
|   MeltingPt = 
|   BoilingPt = 
|   Solubility =  }}
| Section3 = {{Chembox Hazards
|   MainHazards = 
|   FlashPt = 
|   Autoignition =  }}
| Section4 = {{Chembox Related
|  Function = 
|  OtherAnions = [[亚铬酸钾]]<BR>[[二硒代亚铬酸钾]]
|  OtherCations = 二硫代亚铬酸钠
|  OtherCpds =
|  OtherFunctn =  }}
}}

'''二硫代亚铬酸钾'''是一种[[无机化合物]]，化学式为{{化學式|鉀|鉻|硫|2}}。

==制备及性质==
它可由[[碳酸钾]]、[[三氧化二铬]]在[[硫化氢]]气氛中加热反应得到：
::<math>\mathsf{ K_2CO_3 + Cr_2O_3 + 4H_2S \ \xrightarrow{800-900^oC}\ 2KCrS_2 + CO_2 + 4H_2O }</math>

在800~900 °C加热[[铬]]、[[硫]]和[[碳酸钾]]的混合物<ref>{{cite journal|title=KCrS<sub>2</sub> Cathode with Considerable Cyclability and High Rate Performance: The First K+ Stoichiometric Layered Compound for Potassium-Ion Batteries|journal=Small|volume=14|issue=49|pages=1803495|doi=10.1002/smll.201803495|url=https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201803495|date=2018|issn=1613-6829|language=en|accessdate=2019-02-05|author=Nirmalesh Naveen, Woon Bae Park, Satendra Pal Singh, Su Cheol Han, Docheon Ahn, Kee-Sun Sohn, Myoungho Pyo|archive-date=2020-02-03|archive-url=https://web.archive.org/web/20200203120338/https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201803495}}</ref>，或者[[重铬酸钾]]在[[氢气]]-[[硫化氢]]气氛中于600 °C还原，都能得到KCrS<sub>2</sub>。<ref name=Laar>{{cite journal|title=The magnetic structure of KCrS<sub>2</sub>|volume=6|issue=3|pages=384–386|date=1973-03-01|issn=0022-4596|doi=10.1016/0022-4596(73)90227-2|url=http://www.sciencedirect.com/science/article/pii/0022459673902272|journal=Journal of Solid State Chemistry|accessdate=2019-02-05|author=B. Van Laar, F. M. R. Engelsman|archive-date=2020-02-03|archive-url=https://web.archive.org/web/20200203120337/https://www.sciencedirect.com/science/article/pii/0022459673902272}}</ref>

它是四方晶系的晶体，空间群R{{overline|3}}m，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。<ref>{{книга
 |заглавие   = Справочник химика |издание = 2-е изд., испр |ответственный = Редкол.: Никольский Б.П. и др. |место = М.-Л.
 |издательство  = Химия |год = 1966 |том = 1 |страниц = 1072
}}</ref><ref name=Laar />

==参考文献==
{{reflist}}

==拓展阅读==
<small>
* {{cite journal|doi=10.1103/PhysRevB.87.014418|title=Magnetism of layered chromium sulfides <math>M</math>CrS<math>{}_{2}</math> (<math>M=\mathrm{Li}</math>, Na, K, Ag, and Au): A first-principles study|url=https://link.aps.org/doi/10.1103/PhysRevB.87.014418|journal=Physical Review B|volume=87|issue=1|pages=014418|date=2013-01-14|accessdate=2019-02-05|author=A. V. Ushakov, D. A. Kukusta, A. N. Yaresko, D. I. Khomskii}}
</small>

{{钾化合物}}

[[Category:钾化合物]]
[[Category:三价铬化合物]]
[[Category:硫化合物]]