Lithium and Sodium Standard Reduction Potentials in Ambient‐Temperature Chloroaluminate Molten Salts

By adding to buffered neutral (MEIC = 1‐methyl‐3‐ethylimidazolium chloride) ambient‐temperature molten salts, it is possible to measure directly the Li⁺/Li(s) couple at a tungsten electrode. From open‐circuit potential measurements performed in a large number of buffered melts, the Li⁺/Li(s) standard reduction potential is found to be −2.066 (±0.005) V vs. Al(III)/Al in a reference melt. Similarly, by adding to buffered neutral (DMPIC = 1,2‐dimethyl‐3‐propylimidazolium chloride), a Na⁺/Na(s) standard reduction potential of −2.097 (±0.050) V is directly determined.