Detonation nanodiamonds (DND) are a material with unique properties that combine the characteristics of diamonds and the advantages of nanostructures. They are formed as a result of the explosion of substances containing carbon and having a negative oxygen balance. The quality and yield of nanodiamonds are determined by main factors, such as the composition of the charge, the armoring of the charge and the composition of the gaseous environment inside the explosion chamber. Despite their pronounced polar surface, nanodiamonds obtained by detonation are poorly dispersed in water and polar solvents. Using the methods of X-ray phase and chemical analysis, DNDs obtained by detonating explosive charges in a shell (armor) in an explosion chamber with a capacity of 2 m3 in a gas atmosphere of the products of previous explosions were studied. Three cast TG bombs (60/40) of 400 g each were used, armored with several layers of acetate fabric tape with a one-sided adhesive layer. After the explosion of the charges, the charge was subjected to oxidation in air using boric anhydride as an oxidation inhibitor of the diamond phase. The Kachkanar-2 sample was subjected to oxidation at 500 оС for 35 hours, and the Kachkanar-1 sample at 500 оС for 65 hours. The research results showed that DND samples obtained by the «dry» method by detonating an explosive armored with polymer tape (adhesive tape) followed by purification by oxidizing the charge in air at 500 оС in the presence of boric anhydride always contained under-oxidized graphite and boron derivatives, even at very significant (65 hours) oxidation time. This circumstance may indicate a significant influence of armoring explosives with polymer tape on the kinetics of oxidation of non-diamond carbon. Such products can be considered as DNDs occupying an intermediate position between the charge and purified nanodiamonds and can be used for technical applications: modification of oils, lubricants, composites.