“…Pure reactants give a half-order reaction, while added inhibitors give a reaction of the first order. Examples of half-order kinetics are found for initiation by photolysis (11,21,23,26,33), radical sources (36,37,38, 44), ozone (16), and metal catalysts (7,8). The data in reference 16 had to be plotted by the authors to obtain the order.…”