Beryllium hydride

Beryllium hydride性质、用途与生产工艺

Beryllium Compounds

In the mid-1960s, considerable interest in beryllium hydride was generated by its potential use with ammonium perchlorate oxidizer in solid propellants for rockets. Beryllium hydride, BeH2 , was prepared by action of ethereal lithium-aluminum hydride with beryllium chloride. A white powder resulted from which the complete removal of ether was difficult. The hydride is not stable above 125 °C (255 °F), decomposing into beryllium and hydrogen.
Beryllium hydride is a three-dimensional polymer, considerably ionic in character and containing Be2+ and H- ions. Alternatively, it may be considered to be an electron-deficient molecule, similar to beryllium chloride and the beryllium alkyls, with hydrogen bridges between the two beryllium atoms (BeH2Be).

Three-dimensional molecule of beryllium hydride

类别

遇水燃烧物品

毒性分级

高毒

爆炸物危险特性

当热至220℃以上时释放爆炸性氢气;与水,甲醇,稀酸反应激烈,释放爆炸性氢气

可燃性危险特性

受热分解有毒铍氧化物烟雾; 因易放出易燃氢气, 能形成危险火灾

储运特性

通风低温干燥; 与库房食品原料,酸和甲醇分开存放

灭火剂

干粉,泡沫,二氧化碳

职业标准

TWA 0.002 毫克(铍)/立方米; STEL 0.005 毫克/立方米

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Beryllium hydride 生产厂家

 

7787-52-2, Beryllium hydride 相关搜索:

• BeH2
• 7787-52-2
• beryllium dihydride
• Dihydrogen beryllium salt
• beryllium(+2) cation: hydrogen(-1) anion
• Beryllium hydride.