caa a22 4500 477049648 CHVBK 20180405111338.0 cr unu---uuuuu 170330e19960701xx s 000 0 eng 10.1007/BF00241513 doi (NATIONALLICENCE)springer-10.1007/BF00241513 Electrosynthesis of a manganese( iii ) aminopolycarboxylate complex in alkaline media [Elektronische Daten] [E. Gyenge, C. Oloman] Mn(iii)CyDTA [(trans-cyclohexane-1,2-diamine-N,N,N′,N′-tetraacetato) manganate(iii)] was generated electrochemically from Mn(ii)CyDTA (6-54 mm) in 0.1 m NaHCO3 at pH 9.0 and 10.5, respectively, 25 °C, for two CyDTA/Mn molar ratios (1/1 and 2/1). A divided batch electrochemical reactor was employed with anode current densities from 2.6 to 102 A m−2. Separate cyclic voltammetry experiments of Mn(iii)CyDTA in alkaline media showed a prepeak behaviour, indicating the adsorption of Mn(ii) species. The visible anodic deposit, formed during the electrosynthesis of Mn(iii)CyDTA at pH 10.5 and 1/1 CyDTA/Mn molar ratio on stainless steel and PbO2/Pb, reduces the current efficiency for Mn(iii). For a Mn(ii) concentration of 18 mm and at 13 A m−2, the graphite and platinized titanium anodes gave a current efficiency for Mn(iii) of 78% and 66%, respectively, without a visible deposit. A 2/1 CyDTA/Mn molar ratio, avoided a visible anodic deposit formation, but gave lower current efficiencies for Mn(iii) than in the case of a 1/1 ligand to metal ratio. The electrosynthesis of Mn(iii)CyDTA is recommended for routine preparation of the complex and is also suitable for in situ electrochemically mediated oxidations in alkaline media (up to pH 11). Chapman & Hall, 1996 Gyenge E. Department of Chemical Engineering, University of British Columbia, V6T 1Z4, Vancouver, BC, Canada aut Oloman C. Department of Chemical Engineering, University of British Columbia, V6T 1Z4, Vancouver, BC, Canada aut Journal of Applied Electrochemistry Kluwer Academic Publishers 26/7(1996-07-01), 721-732 0021-891X 26:7<721 1996 26 10800 https://doi.org/10.1007/BF00241513 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00241513 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gyenge E. Department of Chemical Engineering, University of British Columbia, V6T 1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 700 1- Oloman C. Department of Chemical Engineering, University of British Columbia, V6T 1Z4, Vancouver, BC, Canada aut NATIONALLICENCE 773 0- Journal of Applied Electrochemistry Kluwer Academic Publishers 26/7(1996-07-01), 721-732 0021-891X 26:7<721 1996 26 10800 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer