Abstract
Decomposition of cumyl hydroperoxide and t-butyl hydroperoxide with bis (O, O-diisobutylthiophosphoryl) disulfide (the isobutyl disulfide) consisted of a radical decomposition at the initial stage and an ionic decomposition at the later stage. After the complete decomposition of t-butyl hydroperoxide with the isobutyl disulfide, the reaction solution was separated into several components, and some of components derived from the isobutyl disulfide was identified and used for decomposition of t-butyl hydroperoxide as catalyst. It was found that sulfuric acid was most effective for the ionic decomposition. The formation mechanism of sulfuric acid was also proposed.
