Potassium Bromate is a powerful oxidizing agent in acid solution and is a convenient, stable source for Bromine. When Bromide ion is also present (either already in the Bromate solution, as in Bromate-Bromide solutions, or added to the sample before the titration is begun) and the solution is acidified, Bromine is produced according to the following reaction:BrO3- + 5 Br- + 6 H+ ? 3 Br2 + 3 H2O.