Investigations of Ferrous Thiamine Complex by Cyclic Voltammetry

Study of thiamine ferrous complex is carried out by intensive use of cyclic voltammetry. The different mole ratio of ferrous thiamine complexes is assessed. Acidified KCl (1M) solution is used as supporting electrolyte. Mole ratio of complex is established 1:2 (thamine: Ferrous ion) 100 mV/s scan rate is chosen as optimum. By applying the Randles Sevcik equation, their reaction is found reversible and occurred under diffusion control system. Their equilibrium constants values are also determined by using the Ipc values of this complex obtained at different scan rates (100 to 500mV/s). The mechanism of the reaction is tried to discover by these results. Thiamine in AFe2 complex is oxidized into A+Fe2 and then reduces again at a fast scan rate.