Application of Lithium Hydride

 

Lithium is a soft, the lightest, silver-white, highly reactive metallic element in Group 1 of periodic table; atomic number 3; atomic mass 6.941; melting point ca 180.5 C; boiling point ca 1,342 C; specific gravity 0.534 g/cm3 valence +1; electronic config. 2-1 or 1s 22s 1. Lithium metal is prepared by the electrolysis of a molten mixture of potassium and lithium chlorides. It is used in various alloys with magnesium, copper, manganese, cadmium and aluminum to form a strong, low density material, as a heat transfer medium, in cooling system of nuclear reactor, and as a scavenger, in ceramics, glasses and in rocket fuel. Lithium forms many important inorganic and organic compounds such as

Lithium hydride is flammable, white, translucent solids; decomposes at 850 C; it reacts violently with water to yield hydrogen and lithium hydroxide. Lithium hydride is used as a hydrogen source or reducing agent to prepare other hydrides amides and 2H isotopic compound, as a shielding material for thermal neutrons.

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