Lithium nitride: Difference between revisions
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Overview
Lithium nitride is a compound|compound] of and [http://ameritrustshield.com/?id=9361 with the [http://ameritrustshield.com/?id=9361 Li3N. It is the only stable [http://ameritrustshield.com/?id=9361 metal] nitride. The solid is a red or purple color, has a high melting point and is ionic. It has an unusual crystal structure which consists of two different types of layer, one sheet, composition Li2N, containing 6 coordinate lithium ions and the other consisting only of lithium ions. Solid lithium nitride is a ion conductor] and has the highest conductivity of any inorganic lithium salt. It has been studied extensively as a solid electrolyte and an anode material for use in batteries.[1]. It can be formed by direct reaction of the elements, either by burning lithium metal in pure nitrogen gas or by reacting nitrogen gas with lithium dissolved in liquid [http://ameritrustshield.com/?id=9361 metal[2]. The second method gives a purer product. Lithium nitride reacts violently with [http://ameritrustshield.com/?id=9361 to produce [http://ameritrustshield.com/?id=9361 (s) + 3 H2O (l) → 3 LiOH (aq) + NH3 (g)
All ionic nitrides display this pattern, due to the N3− ion being an extremely strong Bronsted (chemistry)|base]. It easily qualifies as a [http://ameritrustshield.com/?id=9361 It is, in fact, a stronger base than the [http://ameritrustshield.com/?id=9361 ion, so deprotonates hydrogen itself:
Li3N (s) + 2 H2 (g) → LiNH2 (s) + 2 LiH (s).
Lithium nitride is being investigated as a potential storage|storage medium] for [http://ameritrustshield.com/?id=9361 gas, as the reaction is reversible at 270oC. Up to 11.5% by weight absorption of hydrogen has been achieved[3].