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硼氢化锂

硼氢化锂
识别
CAS号 16949-15-8  checkY
PubChem 4148881
ChemSpider 55732
SMILES
 
  • [Li+].[BH4-]
InChI
 
  • 1/BH4.Li/h1H4;/q-1;+1
InChIKey UUKMSDRCXNLYOO-UHFFFAOYAS
RTECS ED2725000
性质
化学式 LiBH4
摩尔质量 21.784 g·mol⁻¹
外观 白色固体
密度 0.666 g/cm3[1]
熔点 268 ℃[2]
沸点 275 ℃ (分解)[2]
溶解性 反应
溶解性乙醚 2.5 g/100 mL
热力学
ΔfHm298K -8.759 kJ/g
热容 3.792 J/g K
危险性
自燃温度 > 180 °C
相关物质
其他阴离子 氢化钾
其他阳离子 硼氢化钠硼氢化钾硼氢化铷
相关化学品 氢化铝钾
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

硼氢化锂是一种无机化合物,化学式为LiBH4,为强还原剂。

化学性质

硼氢化锂可以和甲醇反应,生成氢气和硼甲氧化锂。[2]

LiBH4 + 4MeOH → Li[B(OMe)4] + 4H2

制备

硼氢化锂可以由硼氢化钠氯化锂的反应制得。[2]

NaBH4 + LiCl → NaCl + LiBH4

参考资料

  1. ^ Sigma-Aldrich Product Detail Page
  2. ^ 2.0 2.1 2.2 2.3 《硼氢化合物》.郑学家 主编.化学工业出版社. ISBN 978-7-122-11506-5.第四章 锂、钾、铝、铍、钙、铷及锌的金属硼氢化物
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硼氢化锂
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