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硒化钙

硒化钙
英文名 Calcium selenide
识别
CAS号 1305-84-6  checkY
PubChem 102107
SMILES
 
  • [Ca+2].[Se-2]
性质
化学式 CaSe
摩尔质量 119.038 g·mol⁻¹
密度 3.57 g·cm−3 (20 °C)[1]
熔点 1408 °C[2]
溶解性 分解[1][2]
相关物质
其他阴离子 氧化钙
硫化钙
碲化钙
钋化钙
其他阳离子 硒化铍
硒化镁
硒化锶
硒化钡
硒化镭
相关化学品 硒酸钙
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硒化钙以等化学计量比形成的化合物,化学式为CaSe。[3]

制备

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硒化钙可以由硒化氢和金属液氨中反应得到。[4]

Ca + H2Se → CaSe + H2

它也可以由硒酸钙被氢气还原而成。[2]

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%。

性质

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物理性质

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和其它碱土金属硒化物一样,硒化钙是立方晶系的。[2]

化学性质

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硒化钙和硒化铟在真空中高温反应,生成CaIn2Se4[5]

CaSe + In2Se3 → CaIn2Se4

熔点时,如果接触到氧气,硒化钙会分解成氧化钙二氧化硒。硒化钙在室温下水解。[2]

用处

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硒化钙最常用于磷光体。它在红外光照射下会发出蓝光。[2]

毒性

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摄入硒化钙有毒,会损害器官。[1]

参考文献

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  1. ^ 1.0 1.1 1.2 Datenblatt Calcium Selenide页面存档备份,存于互联网档案馆) bei AmericanElements, abgerufen am 1. Juli 2019 (PDF页面存档备份,存于互联网档案馆)).
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 Richard C. Ropp, Encyclopedia of the Alkaline Earth Compounds, Newnes: pp. 175, (德文) 
  3. ^ 存档副本. [2018-05-03]. (原始内容存档于2019-07-01). 
  4. ^ 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(德文). Zeitschrift fuer Anorganische und Allgemeine Chemie, 1977. Vol 437: 193-196.
  5. ^ 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, CaIn2Se4(俄文). Zhurnal Neorganicheskoi Khimii, 1988. 33 (6): 1387-1389.
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硒化钙
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