Ea of Reaction between Bromide & Bromate(V) ion in acidic

activation of bromide ion and bromate(V)

The equation for the reaction phenol and bromine
C6H5OH(aq) + Br2(aq) ----> C6H2Br3OH(aq) + 3HBr(aq)
2,4,6-tribromophenol


If your experiment is activation of the reaction between bromide and bromate ions in acid solution, then Meythl Red solution is used as an indicator in this experiment. The bromine produced during the reaction reacts very rapidly with phenol (forming tribromophenol). Once all of the phenol is consumed, any further bromine bleaches the meythl red indicator immediately, which means the excess free Br2 will bleach the methyl red to give a colourless solution. so if you run your activation in different temperature, the time for the reaction to proceed to a given point can be determined (since the meythl red will give a colourless solution).

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