<p>The influence of metal corrosion products on the thermal effects of reactions in nitric acid solutions with hydrazine nitrate, carbohydrazide, acetohydroxamic acid before and after irradiation has been studied. For this purpose, the onset temperature of exothermic processes (<i>T</i>_st), their duration (<i>τ</i>), specific thermal effect of reactions (<i>Q</i>_sp), self-heating value of the solution (Δ<i>T</i>), and also the increase in pressure during the reaction (Δ<i>P</i>) were determined by the method of thermal analysis in crucibles of different compositions. It has been established that in the presence of corrosion products (Fe, Cr, Ni), an increase in self-heating value of the sample, pressure and thermal effects of the reaction is observed. Irradiation of mixtures to the doses of 100 and 500&#xa0;kGy leads to a change in the characteristics of the exothermic process, with the most significant increase in parameters observed for solutions in hastelloy crucibles.</p>