Abstract
The extinction coefficient at 240 nm of the solvated electron optical absorption spectrum at -50 °C in ammonia is found to be 330 ± 100 L mol'1 cm"1, a value significantly smaller than the value previously reported by Belloni et al. Optical absorption spectra of partially decomposed solutions of sodium in liquid ammonia at -50 °C indicate the presence of more than two absorbing species in some of the solutions. The absorption band located near the solvent UV cutoff previously attributed to solvated electrons arises in part, though possibly not entirely, from absorption of species other than solvated electrons.