a minor amount of a radical trap , that is , an organic compound readily reacting with an organic radical , when combined with a polyolefin having a melt index of from about 0 . 2 to about 10 , can be associated with 70 per cent tertiary butyl hydroperoxide . in the event of accidental conflagration of the combination , the combustion continues at a moderate rate , thereby avoiding the propensity toward troublesomely rapid burning of unmodified aqueous 70 per cent tbhp . container liners should have a polyolefin thickness of 0 . 7 to 7 mm , the polyolefin containing such radical trap in a concentration of from about 0 . 1 to about 5 per cent , generally 0 . 2 to 2 per cent . if particulate polyolefin is used , the radical trap concentration should be from about 10 to about 100 , 000 parts per million parts of aqueous tbhp . a concentration of polyolefin particles from about 0 . 6 per cent to about 6 per cent by weight of the tbhp is suitable .