Low Density Limit of Stability of Solvated Electrons in Supercritical Ammonia

Pulse radiolysis of supercritical ammonia yields solvated electrons in the solvent density range down to 10mol ammonia vapour per litre (0.2 g/cm3). The absorption spectrum has about the same form and the same position as in normal liquid ammonia at lower temperature. Below the given density limit solvated electrons could not be detected any more.