Four trials with an increasing concentration of hypochlorite (0.5, 1, 2, and 3 mL for Trials 1−4, respectively) and constant concentration of the dye were performed. Aside from the change described below, the experimental protocol suggested by Henary and Russell was employed. All data was collected on a Shimadzu UV-2600 UV−vis spectrophotometer using polystyrene cuvettes with a 10 mm path length.