In an oscillating chemical reaction as the Briggs-Rauscher-reaction, the composition of the mixture is complex as a result of some chemical species which exhibit periodic changes. Consequently, such a reaction has an intricate rate law which makes it difficult to determine experimentally. Due to this fact, the paper investigates if the mathematical model Lotka-Volterra including the classic and logistic versions can be used as a description of the Briggs-Rauscher-reaction. In this context, a thorough extermination of the Briggs-Rauscher-reaction, both theoretically, but also experimentally by determining the activation energy and achieving the absorption spectrum of iodine ( I_2), is given. Furthermore, the Lotka-Volterra system of equations
