查看“︁硒化钙”︁的源代码

{{chembox
| Name = 硒化钙
| NameEn = Calcium selenide
|ImageFile=NaCl polyhedra.svg
|Section1={{Chembox Identifiers
| PubChem = 102107
| CASNo = 1305-84-6
| CASNo_Ref = {{cascite|correct|CAS}}
|SMILES=[Ca+2].[Se-2]
  }}
|Section2={{Chembox Properties
| Formula = CaSe
| MolarMass = 119.038
| Density= 3.57 g·cm<sup>−3</sup> (20&nbsp;°C)<ref name="AMERICANELEMENTS">Datenblatt [https://www.americanelements.com/calcium-selenide-1305-84-6 ''Calcium Selenide''] {{Wayback|url=https://www.americanelements.com/calcium-selenide-1305-84-6 |date=20210710090339 }} bei AmericanElements, abgerufen am 1. Juli 2019 ([https://www.americanelements.com/printpdf/calcium-selenide-1305-84-6/sds PDF] {{Wayback|url=https://www.americanelements.com/printpdf/calcium-selenide-1305-84-6/sds |date=20210710091852 }}).</ref>
| MeltingPt= 1408&nbsp;°C{{cn}}
| BoilingPt= 
| Solubility= 分解<ref name="AMERICANELEMENTS" />
  }}
|Section8={{Chembox Related
| OtherAnions=[[氧化钙]]<br />[[硫化钙]]<br />[[碲化钙]]<br />[[钋化钙]]
| OtherCations=[[硒化铍]]<br />[[硒化镁]]<br />[[硒化锶]]<br />[[硒化钡]]<br />[[硒化镭]]
| OtherCpds=[[硒酸钙]]
}}
}}

'''硒化钙'''是[[硒]]和[[钙]]以等化学计量比形成的化合物，化学式为CaSe。<ref>{{Cite web |url=https://pubchem.ncbi.nlm.nih.gov/compound/102107 |title=存档副本 |accessdate=2018-05-03 |archive-date=2019-07-01 |archive-url=https://web.archive.org/web/20190701085307/https://pubchem.ncbi.nlm.nih.gov/compound/102107 |dead-url=no }}</ref>

== 制备 ==
硒化钙可以由[[硒化氢]]和金属[[钙]]在[[液氨]]中反应得到。<ref>Kohle, J.; Petzel, T. The preparation of calcium selenide, strontium selenide, barium selenide, and europium(II) selenide by the reaction of the metals with hydrogen selenide in liquid ammonia{{de}}. ''Zeitschrift fuer Anorganische und Allgemeine Chemie'', 1977. Vol 437: 193-196.</ref>
: Ca + H<sub>2</sub>Se → CaSe + H<sub>2</sub>

它也可以由[[硒酸钙]]被[[氢气]][[还原]]而成。{{cn}}

<chem>CaSeO4 + 4 H2 -> CaSe + 4 H2O</chem>

硒和钙在550℃的[[惰性气体]]下直接反应也可以得到硒化钙，不过产率只有50%。{{cn}}

== 性质==
=== 物理性质 ===
和其它碱土金属硒化物一样，硒化钙是[[立方晶系]]的。{{cn}}

=== 化学性质 ===
硒化钙和硒化铟在真空中高温反应，生成CaIn<sub>2</sub>Se<sub>4</sub>。<ref>Yagubov, N. I.; Guliev, T. N.; Rustamov, P. G.; Chiragov, M. I.; Safarov, V. G. Preparation and study of the properties of calcium indium selenide, CaIn<sub>2</sub>Se<sub>4</sub>{{ru}}. ''Zhurnal Neorganicheskoi Khimii'', 1988. 33 (6): 1387-1389.</ref>
: CaSe + In<sub>2</sub>Se<sub>3</sub> → CaIn<sub>2</sub>Se<sub>4</sub>

在[[熔点]]时，如果接触到[[氧气]]，硒化钙会分解成[[氧化钙]]和[[二氧化硒]]。硒化钙在室温下水解。{{cn}}

== 用处==
硒化钙最常用于[[磷光体]]。它在[[红外光]]照射下会发出蓝光。{{cn}}

== 毒性==
摄入硒化钙有毒，会损害器官。<ref name="AMERICANELEMENTS" />

== 参考文献 ==
{{reflist}}

{{钙化合物}}
{{硒化物}}

[[Category:钙化合物]]
[[Category:硒化物]]