The aim of this experiment is to study the annealing processes associated to the Szilard-Chalmers reaction that gives the proper way of taking out radioactive isotopes from the solution due to the differences in their chemistry, permanganate solution was expose to neutron by placing the solution near the AmBe source in a water tank, which gives an account that when the solution of potassium permanganate exposed to neutrons from the moderate neutron irradiator, most of the radioactive could be separated and leave with some percentage in the form of permanganate. For the first filtration, the percentage retention for the filtered solution is 32.8±0.6 % and the precipitate is 67.2% while for the second percentage retention for the filtered solution is 17±0.4 % and the precipitate is 83%. The 3.05 hours was determined using the table figured (4.2) as half-life of the isotope 56Mn.