Kinetic features of ammonium persulfate decomposition in aqueous medium

Decomposition of ammonium persulfate in an aqueous medium (353–368 K) is limited by decomposition of persulfate ions with a rate constant logk2 = (15±3)–(52±8)•103 J mol–1/(2.3RT). The apparent rate constant for decomposition of persulfate ammonium kapp = = k2γ depends on the decomposition rate constant and the activity coefficient of persulfate ions, the temperature, and the ionic strength of solution.