Quantitative Electrodeposition of Plutonium

Alkaline chemistry of transuranium elements and technetium and the treatment of alkaline radioactive wastes

“…Pu(VI) electrodeposition from 1.6 to 2 M NaOH solutions was found to occur with 100% yield at current densities more than' 40 mAkm2. Complete electrodeposition is achieved in 2 hours (Muller and Brouns 1952). At a current density of 25 mA/cm2, the layers of electrodeposited P u o hydroxide appear to be more uniform, but 90% Pu deposition is achieved only in 4 hours .…”

“…The yield of plutonium on platinum and stainless steel was as high as 90 to 96% at a current density of 25 mA cm-2 after 4 hours electrolysis and near 100% at current density 40 mA cm-2 after 2 hours electrolysis (Miller and Brouns 1952). Some time ago it was shown that technetium can be electrodeposited from a solution of 1 to 2 M NaOH, and 104 M Tc(VII), at the cathode potential -0.86 V (vs NHE) as Tc (IV) hydroxide (Rogers 1949).…”

Electrodeposition of Americium and Physicochemical Behaviour of the Solution

“…For example, Am'(III) is the first order generalized species of Am(III); the prime means that the first buffered component (H + or OH~ in this case) has been implicitly considered so that 4 '] is the second order complexation coefficient and a Am(H ,so 4 ') is the two-conditional complexation coefficient [8,10]. The term a Am ' <ni>[so 4 ·] is a polynomial with coefficients involving conditional constants of generalized global equilibria:…”

“…The literature on actinide electrodeposition techniques describes procedures [4,5], but treats the experimental parameters empirically, may be because the electrodeposition of a solid phase is a multiparametric process which includes some of the following:…”

Electrodeposition of Cobalt at Trace Levels with a Special Reference to Preparation of 60Co Source

“…This technique is also commonly used in nuclear Industries for preparation of radioactive sources [1], preconcentration technique for actinide analysis [2][3][4][5], ultra purification of laboratory chemicals [6] and estimation of rare earths in sea water [7,8] etc. where the deposition is carried out from electrolytic baths containing metal ions at ppm (mg/kg of aqueous Solution) or sub-ppm levels.…”