The mechanism for this reaction is very complex and is thought to involve around 18 different steps which have been the subject of a number of research papers.[9][10]In a way similar to the Briggs–Rauscher reaction, two key processes (both of which are auto-catalytic) occur; process A generates molecular bromine, giving the red colour, and process B consumes the bromine to give bromide ions.[11]One of the most common variations on this reaction uses malonic acid (CH2(CO2H)2) as the acid and potassium bromate (KBrO3) as the source of bromine. The overall equation is:[11]3CH2(CO2H)2 + 4BrO−3 → 4Br− + 9CO2 + 6H2O
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