查看“︁乙炔钾”︁的源代码

{{Chembox
| ImageFile1=K2C2 unit cell.png
| CustomizedImage= [[File:2.svg|x35px|2]] [[File:K+.svg|x35px|Struktur des K<sup>2+</sup>-Kations]] [[File:Acetylide.svg|66px|Struktur des C<sub>2</sub><sup>2−</sup>-Ions]]
|Section1={{Chembox Identifiers
 | CASNo             = 22754-96-7
 | PubChem         = 102011382
|SMILES=[K+].[C-]#[C-].[K+]
}}
|Section2={{Chembox Properties
 | Formula= K<sub>2</sub>C<sub>2</sub>
| Appearance= 黄色固体<ref name="T. Y. Kosolapova" />
 | MolarMass    = 102.22 
 | Density= 
 | MeltingPt= 
 | BoilingPt= 
 | Solubility     = 反应
}}
|Section8={{Chembox Related
| OtherAnions=[[氰化钾]]
|OtherCations=[[乙炔锂]]<br />[[乙炔钠]]<br />[[乙炔铷]]<br />[[乙炔铯]]
}}
}}

'''乙炔钾'''是一种[[钾]]的[[碳化物]]，化学式{{chem|K|2|C|2}}。其它钾的碳化物包括 [[KC8|KC<sub>8</sub>]]， KC<sub>16</sub> 等等。<ref name="T. Y. Kosolapova" />

== 制备 ==
乙炔钾可以由溶于[[液氨]]的金属[[钾]]和[[乙炔]]在真空下反应而成的。<ref name="DOI10.1002">S. Hemmersbach, B. Zibrowius, U. Ruschewitz: ''Na<sub>2</sub>C<sub>2</sub> und K<sub>2</sub>C<sub>2</sub>: Synthese, Kristallstruktur und spektroskopische Eigenschaften.'' In: ''Zeitschrift für anorganische und allgemeine Chemie.'' 625, 1999, S.&nbsp;1440, {{DOI|10.1002/(SICI)1521-3749(199909)625:9<1440::AID-ZAAC1440>3.0.CO;2-R}}.</ref>此反应也可以生成 KHC<sub>2</sub> ，取决于温度。<ref name="T. Y. Kosolapova">{{Literatur| Autor=T. Y. Kosolapova | Titel=Carbides Properties, Production, and Applications | Verlag=Springer Science & Business Media | ISBN=978-1-4684-8006-1 | Datum=2012 | Online={{Google Buch | BuchID=6_HTBwAAQBAJ | Seite=64 }} | Seiten=64 }}</ref>

钾和[[碳]]反应是不能得到乙炔钾的。<ref name="Chris Woodford">{{Literatur| Autor=Chris Woodford | Titel=Potassium  | Verlag=Marshall Cavendish | ISBN=978-0-7614-1463-6 | Datum=2003 | Online={{Google Buch | BuchID=xyY33U4nGpMC | Seite=11 }} | Seiten=11 }}</ref>

乙炔钾也可以由[[甲醇钾]]在 300&nbsp;°C 分解或是[[氰化钾]]和[[镁]]反应而成。<ref name="T. Y. Kosolapova" />
:<math>\mathrm{6 \ KOCH_3 \longrightarrow K_2C_2 + 2 \ K_2CO_3 + 2 \ C + 9 \ H_2}</math>

:<math>\mathrm{2 \ KCN + 3 \ Mg \longrightarrow K_2C_2 + Mg_3N_2}</math>

== 性质==
乙炔钾是一种黄色固体，<ref name="T. Y. Kosolapova" />遇水着火。<ref name="L. Bretherick">{{Literatur| Autor=L. Bretherick | Titel=Bretherick's Handbook of Reactive Chemical Hazards | Verlag=Elsevier | ISBN=978-1-4831-6250-8 | Datum=2016 | Online={{Google Buch | BuchID=4_PJCgAAQBAJ | Seite=1996 }} | Seiten=1996 }}</ref> 
== 参考资料==
<references />
{{钾化合物}}
{{碳化物}}

[[Category:钾化合物]]
[[Category:乙炔化物]]