
TY  - JOUR
A1  - Beckmann, P 
A1  - Buchanan, GS 
T1  - Direct current polarography of the ferrous-ferric oxolate system in the presence of alternating voltages
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1958
VL  - 11
IS  - 1
SP  - 9
EP  - 15
KW  - 
UR  - https://doi.org/10.1071/CH9580009 
N2  - The effect of the superposition of a small alternating voltage on the normal direct voltage applied to the dropping mercury electrode (D.M.E.) was investigated in the case of the ferrous-ferric oxalate system. The wave obtained was of the type found previously for ions which are reversibly reduced at the D.M.E. (e.g. Cd++ etc.). That is, the rectification of the A.C. produced a D.C. wave (the Z wave) which crossed the normal D.C. wave (the Y wave) at the half-wave potential (E½), When surface active materials were added (e.g. cyclohexanol) the reduction became &quot; irreversible &quot; and at certain concentrations of the surface active substance a maximum appeared on the Y wave of a somewhat unusual nature. The effect of a superposed alternating voltage was studied in these cases and it was found that the adsorption of the cyclohexanol was influenced by the presence of the alternating voltage. 
ER  -

