Potential of the silver-silver chloride reference electrode in liquid ammonia

Reduction potentials of rare earth couples in liquid ammonia

“…The scant information available on electrode potentials in liquid ammonia has been discussed by Jolly3 and by Jander et al 4 The known standard reduction potentials are the result of thermodynamic calculations, since a reference electrode of known potential vs. the standard hydrogen electrode has not been available until recently. 5 In no case has the potential of a rare earth couple in liquid ammonia been recorded. The reduction potential of nitrogen (V2N2 + 3NH4+ + 3e--» 4NH3) is very low, only 0.04 V, but fortunately a high overvoltage exists, and a span of approximately 2 V is actually available.…”