LITHIUM AMIDE LiNH2Properties of lithium amide: White, melts without decomposition, decomposes on further heating. Completely hydrolysed by water. Reacts with acids.
Obtaining lithium amide: 2 Li + 2 NH3 = 2 LiNH2 + H2 (220° C) LiH + NH3 = LiNH2 + H2 (350° C). LiH + NH3 (liquid) = LiNH2 ↓ + H2 ↑ (- 40° C). Reactions with lithium amide: 2 LiNH2 = Li2NH + NH3 (400—500° C). LiNH2 + 2 H2O (cold) = LiOH + NH3-H2O. LiNH2 + 2 HCl (diluted) = LiCl + NH4Cl |
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Isotopes are atoms with the same atomic number, but different atomic masses (different number neutrons.)