Briggs-Rauscher reaction. Oscillating reaction with Y7 differences between chemical and physical reactions. #time4chem #chemed #science | ChemClub

The Briggs-Rauscher reaction is a striking oscillating chemical reaction known for its rhythmic color changes between clear, amber, and deep blue. This reaction involves potassium iodate, hydrogen peroxide, and malonic acid, with manganese sulfate as a catalyst and starch as an indicator. In cycles, iodine is produced and consumed, causing color shifts: clear when iodine forms, amber as it reacts with malonic acid, and deep blue when iodide ions complex with starch. The reaction continues these

The "Briggs-Rauscher reaction," often misremembered as the "Brigg Rouche reaction," is a famous chemical demonstration known as the Briggs-Rauscher Oscillating Clock Reaction, where a solution cycles through colorless, amber, and dark blue, demonstrating complex non-equilibrium chemistry. Discovered by Thomas Briggs and Warren Rauscher in 1972, it involves iodine, malonic acid, hydrogen peroxide, and starch, creating visible oscillations as different reactions temporarily dominate, showcasing pe