Radiopolarographic Study of Americium and Curium

摘要: The radiopolarographic behavior of americium and curium in non-complexing aqueous media was examined as a function concentration, specific activity pH. At pH=3.0, single wave observed below [Am]=8.0×10-7 M having plateau at potential more negative than -2.02 V (main wave). An additional pre-wave above [Am]=9.6×10-7 M. lower pH(<2.6), the appeared even concentration smaller 8.0×10-7 maxmium height shifted slightly with concentration. found to be similar that americium. main waves were diffusion-controlled, but pre-waves not. It occured independently waves, due reduction metallic state. transfer coefficients ol cathodic rate constants K c 0 E=0 obtained α=0.41 = 8.8×10-40 cm/s for Am(III)/Hg(Am); α=0.50 =9.1×10-48 Cm(III)/Hg(Cm), respectively.