Thursday 22 March 2012

What is Lithium nitrate used for?

 
Lithium nitrate is an inorganic compound with the blueprint LiNO3. It is the lithium alkali of nitric acid. It is fabricated by reacting lithium carbonate or lithium hydroxide with nitric acid.
Uses
This deliquescent colourless salt is an oxidizing agent used in the manufacture of red-colored fireworks and flares.
Lithium nitrate has been proposed as a medium to store heat collected from the sun for cooking. A Fresnel lens would be used to melt solid lithium nitrate, which would then function as a 'solar battery', allowing heat to be redistributed later by convection.
Properties
Upon thermal decomposition, LiNO3 gives lithium oxide (Li2O), nitrogen dioxide, and oxygen: 4 LiNO3 → 2 Li2O + 4 NO2 + O2
Other group I nitrates decompose differently, forming the nitrite salt and oxygen. Because of its relatively small size, the lithium cation is very polarizing, which favors the formation of the oxide.
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