New Materials, Compounds and Applications

The work used a fraction of oil with a temperature range of 410-550 °С. The reactions of the heavy fraction of oil with 80-90% sulfuric acid were studied. Since it was difficult to separate the reaction products, these compounds were converted into their corresponding salts under the influence of alkali. Sulfohydated salts of bicyclic sulfur organic compounds contained in oil were obtained by hydrolytic decomposition of sulfo groups using a 25% sulfuric acid solution. The composition and structure of the obtained compounds were analyzed and studied using various IR spectrometers, thin-layer chromatography (TLC) and CHNS/O Elemental Analyzer. As is shown in the work the reaction of alkyl derivatives of bicyclic sulfur organic compounds with long aliphatic substituents in the side chain with sulfuric acid is a complete reaction and the reaction results in the formation of monosulfohydated products of the corresponding compounds.