Mining workings during geological exploration works completely or overwhelmingly pass through the oxidation zone, which is of the greatest interest in the study of dust explosiveness. The variety of factors, on which the oxidation process of sulfide deposits depends, does not make it possible to study the explosivity of dust of sulfide ores in this zone at one of any deposits. Explosive properties of sulfide dust are not fully studied, but it is certain that explosiveness is determined mainly by sulfur, and not only the amount of sulfur in the ore, but also the properties of the minerals in which it is contained ....

One of the main factors characterizing the propensity of dust to explode is the volatile yield. Sometimes it is considered to determine the degree of dust explosiveness. There are different opinions about the relationship between the explosiveness of coal dust and the content of volatiles. Some researchers, in principle not denying the influence of volatiles on explosiveness, do not find a strict regularity in it, which would apply to coals of all deposits. Other authors believe that the explosivity of coal dust is a function of volatiles and define it as a linear dependence. The deviation of explosiveness from this regularity, observed by some researchers in the laboratory study of coals, is apparently explained by the influence of oxidation, ash content and partly by the petrographic composition of coals. As our studies of seven coal seams of Kuzbass have shown, dust explosiveness in the first period of oxidation slightly increases and then decreases. It increases, apparently, due to sorption of oxygen ...