Tags: Chemical Compound, Chemical Substance.
Lithium oxide (Li2O) or lithia is an inorganic chemical compound. Lithium oxide is formed along with small amounts of lithium peroxide when lithium metal is burned in the air and combines with oxygen:4Li + O2 → 2Li2O.Pure Li2O can be produced by the thermal decomposition of lithium peroxide Li2O2 at 450 °C2Li2O2 → 2Li2O + O2↑ ↑ 2.0 2.1