The chemical formula of lithium nitride is Li3N, which is an inorganic compound. It is a purple or red crystalline solid, with light green luster under reflected light and ruby color under transmitted light. Insoluble in most organic solvents.

React with water to generate lithium hydroxide and ammonia;

Li3N + 3 H2O =3 LiOH + NH3

Lithium nitride is a super base, and its alkalinity is stronger than negative hydrogen ions, so hydrogen can be deprotonated;

Li3N + H2=Li2NH +LiH

When lithium nitride is heated in hydrogen, lithium amide (LiNH2) and lithium imino (Li2NH) can be obtained in turn, which are finally converted into lithium hydride and release ammonia.