Using the new principle of nitrogen oxidation by hydroperox­ide has helped in discovering a new method of nitrogen fixation, mainly shaped as N₂O, other oxides with low admixtures or nitrogen-containing acids under conditions, which are relatively soft for such reaction type. Gas-phase oxidation of nitrogen with hydrogen peroxide is rather complicated and consists of primary nitrous oxide formation. When nitrous oxide with the reaction mixture is yielded by the reaction (high-temperature) zone, it enters secondary reactions with other reagents in the mixture and, on rapid cooling, forms H₂N₂O₂ and other nitrous acids.