The reduction of cupric ion on the surface of passive stainless steel electrodes in aerated, dilute sulfuric acid medium has been investigated using potentiostatic, galvanostatic, and tracer techniques. The independent simultaneity of the electrode reactions has been demonstrated. A mechanism is advanced for the reduction of cupric ion on the oxide surface. The data are interpreted on the basis of electrochemical kinetics. * Medium: 150-400 ml of 0.105/ H2SO4 at 85~ stirred at ca. 600 rpm; pOs = 0.2 atm. Electrodes: flag-shaped type 347 stainless steel sheet electrodes (abraded surface) of 2-4 cm s geometrical area, stems lacquered with baked G. E. Glyptal. Initial electrode potentlals, before additlons, occupied region + (100-200) mv vs. S.C.E. at 25~ and were sensibly constant (+__3 mv/hr). 2.303 RT/F at 85~ = 0.071 v. 582 ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 128.210.126.199 Downloaded on 2015-05-23 to IP Vol. 106, No. 7 ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 128.210.126.199 Downloaded on 2015-05-23 to IP ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 128.210.126.199 Downloaded on 2015-05-23 to IP
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