Temperature dependences of the e(aq)(-) spectrum and G epsilon(max) were in
vestigated by the pulse radiolysis method over a temperature range of 25-40
0 degrees C including the supercritical condition and the e(aq)(-) formatio
n in supercritical water (D2O) was confirmed. With increasing temperature,
the absorption peak (lambda(max)) of e(aq)(-) shifts significantly to longe
r wavelength. The value of G epsilon(max) in supercritical water is conside
rably smaller than in liquid water at room temperature. The behavior of e,
revealed here is helpful for an extensive understanding of water radiolysis
and for the study of e(aq)(-) involving radical reactions in supercritical
water. (C) 2000 Published by Elsevier Science B.V.