The Briggs-Rauscher reaction, also known as 'the oscillating clock', is one of the most common demonstrations of a chemical oscillator reaction. 🕒 Our University of Sydney chemists demonstrate what happens when three different colourless solutions are mixed together to give one solution. 🧪 This particular solution contains (among other thing) potassium iodate, starch, hydrogen peroxide and a strong acid.💫 The solution changes between colourless, amber and dark blue as a result of several comp
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FacebookFaculty of Science, University of Sydney
The Briggs-Rauscher reaction, also known as 'the oscillating clock', is one of the most common demonstrations of a chemical oscillator reaction. 🕒 Our University of Sydney
Faculty of Science, University of Sydney. . The Briggs-Rauscher reaction, also known as 'the oscillating clock', is one of the most common demonstrations of a chemical oscillator reaction. 🕒 Our University of Sydney chemists demonstrate what happens when three different colourless solutions are mixed together to give one solution. 🧪 This ...
341 viewsSep 27, 2021
Briggs–Rauscher Reaction Experiment
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
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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
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The Briggs-Rauscher reaction is one of the most dramatic examples of oscillating chemistry. When its ingredients are mixed, the solution repeatedly cycles through clear amber and deep blue as iodine appears and disappears. These repeating color changes happen because the system constantly shifts between different internal pathways, each one pushing the chemistry in a different direction before the next swing takes over. Watching the reaction unfold feels almost like observing a chemical heartbea
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