Systemic Approach for Numerical Modeling and Simulation of the Impulse Response for Rapid Reaction Cu2+ - S2O32-

The kinetics of reaction between Cu²⁺ and S₂O₃ ^2- and formation of an intermediate complex, CuS₂O₃, are investigated. The kinetics of fading away of the color of this complex has been traced spectrophotometrically using a stopped-flow apparatus. The experimental reaction order is consistent with the mechanism involving in the first step complex´s fast formation and in the second, the reaction between two complex molecules. For family of curves y = y(t, p), experimentally rise up, y is the light intensity and it is considered as dependent on time t [ms] and concentration p[mol/l]. We are following the significant stages of identification - numerical modeling and simulation, in a usual systemic variant. The results run on the computer are being compared and interpreted in report to the experimental measurements