Features of the Use of Ammonium Nitrate in the Sulfide-Bearing Ore Mining

Abstract— The modern idea of ​​the mechanism and features of the thermal decomposition of NH₄NO₃ is described. The influence of additives of different nature on the thermal stability of NH₄NO₃ was analyzed. Various mechanisms of oxidation and subsequent dissolution of pyrite of sulfide-bearing ores in groundwater and its effect on NH₄NO₃, which is the main component of emulsion explosives, as well as the mechanism of autocatalytic decomposition of NH₄NO₃ in the presence of iron(II) salts, are shown. Methods for inhibiting the NH₄NO₃ decomposition are considered, which are designed to increase its stability during storage and under conditions of use in the sulfide-bearing ore mining.