Nitro derivatives were obtained on the basis of α-olefins – ofoctene-1, dodecene-1, tetradecene-1, C_16–18 from the oli­go­­merization of ethylene as well on the basis of trimer and tetramer of propylene.  The aqueous and alcoholic solutions of mono-, di-, triethanolamine salts of nitro compounds have been prepared. Investigated is the action of these solutions to H₂S corrosion of metals. It is established that the protective effect depends on the length and structure of the radical and the cation species.