Kiriyak, LudmilaCecoi, NataliaCazac, TatianaRevenco, Mihail2018-03-272018-03-272009KIRIYAK, L., CECOI, N. et al. Adsorption wave of vanadium complex with 2,3–dihydroxybenzaldehyde . In: Cemistry Journal of Moldova. 2009, nr.2, pp. 24-27. ISSN 1857-1727.1857-1727https://msuir.usm.md/handle/123456789/1723The polarographic behavior of the complex formed by V(V) and 2,3–ihydroxybenzaldehyde (2,3–DHBA) in the solution containing acetate buffer (pH 5,2) has been investigated. By means of a.c. polaro-graphy, chronovoltammetry and other techniques, it has been shown that the electrode process is complicated by the adsorption of 2,3-DHBA and its vanadium complex. The kinetic and adsorption parameters of the electrode process have been determined: adsorption equilibrium constant B= 1,32⋅105 mol-1⋅dm3, the attraction constant γ = 1,2, the maximum surface concentration Гmax = 9,10⋅10-11 mol⋅ cm-2; the share of the electrode surface occupied by one particle of the adsorbed complex S = 1,81 nm2 and the free adsorption energy ∆G = - 39,1 kJ· mol-1.envoltammetry2,3–dihydroxybenzaldehydevanadiumArticle