FWS – The Briggs-Rauscher Reaction

The Briggs-Rauscher reaction is a colourless solution that becomes amber then suddenly turns blue-black. The blue-black will fade to colourless, and the cycle will repeat several times with a period which initially lasts a few seconds but gradually lengthens. After a few minutes the solution will remain blue-black that liberates iodine vapors.

The reaction can occur via two differ processes. A radical process and a non radical process. Which of these two processes dominates is determined by the concentration of iodide ions in the solution. When iodide ion concentration s low the radical process dominates. when its high the non radical process is the dominant. Basically each of the processes of produces conditions favorable to the other, and, therefore, the reaction oscillates between the two.

Briggs–Rauscher reaction

“How it Begins” Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0

Intro Music by Michael ‘Skitch’ Schiciano
bio: http://bio.skitchmusic.com
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About Myles Power (751 Articles)
My name is Myles Power, and I run the educational YouTube channel, powerm1985. I spend what little free time I have sharing my love of SCIENCE! through home experiments, visiting sites of scientific interest, and angrily ranting at pseudoscience proponents. I am also one of the founding members of the podcast 'The League of Nerds' - which I co-host with James from 'The History of Infection'.

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