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Relevance: it is proposed to evaluate the efficiency or activity of oxygenate compounds by the value of oxygen atomic refraction. This will allow developing new components and additives for the production of motor fuels based on available domestic raw materials.
Objective. Comparison of the efficiency of oxygenate additives and supplements using simple calculation meth-ods.
Methods: a calculation method for determining the molecular and atomic diffraction of oxygenates was used.
Results and conclusions: all oxygenate compounds contain oxygen and the lower the atomic refraction, the more active the vibrations of atoms and electrons in the molecules of oxygenate compounds. Thus, the lower the atomic refraction of oxygen, the higher the activity of the oxygenate. Both molecular and atomic refractions of the main oxygenates have been determined, which made it possible to compare the oxygenates in use and those with potential. An important point is the specific refraction per 1 gram of substance. It is also possible to compare the activity of oxygenates, but in the reverse order: the higher the specific refraction, the more effective the compound is for a spark-ignition engine. For diesel engines, it is desirable to have higher atomic refraction and lower specific refraction per 1 gram of substance, i.e. in the reverse order.
Objective. Comparison of the efficiency of oxygenate additives and supplements using simple calculation meth-ods.
Methods: a calculation method for determining the molecular and atomic diffraction of oxygenates was used.
Results and conclusions: all oxygenate compounds contain oxygen and the lower the atomic refraction, the more active the vibrations of atoms and electrons in the molecules of oxygenate compounds. Thus, the lower the atomic refraction of oxygen, the higher the activity of the oxygenate. Both molecular and atomic refractions of the main oxygenates have been determined, which made it possible to compare the oxygenates in use and those with potential. An important point is the specific refraction per 1 gram of substance. It is also possible to compare the activity of oxygenates, but in the reverse order: the higher the specific refraction, the more effective the compound is for a spark-ignition engine. For diesel engines, it is desirable to have higher atomic refraction and lower specific refraction per 1 gram of substance, i.e. in the reverse order.
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2. Mikhailova N.N., Gasanzade E.I., Shavshukova S.Yu., Zlotsky S.S. Progressive methods for improving the performance characteristics of diesel fuel. Bashkir Chemical Journal. 2023. T. 30. No. 1. P. 111 – 115.
3. Savelenko V.D., Ershov M.A., Makhova U.A., Makhmudova A.E., Podlesnova E.V., Nizovtsev A.V., Timo-feeva T.V., Ovchinnikov K.A., Nikulin M.V., Reshetov M.S. Analysis of the fuel additives market in Russia and import substitution prospects. Oil and Gas Chemistry. 2023. No. 2. P. 12 – 19.
4. Nikolaev V.F. Rapid methods for testing composite products of oilfield chemistry and motor fuels: mono-graph. Kazan: Publishing house of Kazan. national research technological University, 2012. 25 p.
5. Rybalkina N.A., Khrisonidi V.A. Refractometric method for establishing the structure of molecules and de-termining the quantitative composition of a mixture. Modern science-intensive technologies. 2014. No. 7. P. 111 – 112.
6. Zimakov P.V., Dymenta O.N., Bogoslovsky N.A. et al. Ethylene oxide: monograph. edited by P.V. Zimakov. Moscow: "Chemistry", 1967. 320 p.
7. Ioffe B.V. Refractometric methods of chemistry. L.: Chemistry, 1983. P. 84 – 86.
8. Miroshnikov A.M., Tsygankov D.V., Polozova A.V. On the action of propylene oxide in the composition of oxygenate compositions. Oil refining and petrochemistry. 2023. No. 5. P. 39 – 43.
9. Tsygankov D.V. Improving the environmental safety of motor transport through the use of propylene oxide as a multifunctional additive to liquid motor fuel: monograph. Kemerovo: KuzGTU, 2024. P. 61 – 64.
10. Miroshnikov A.M. Improvement of the technology of processing lower olefins into dichlorides and oxides by the method of liquid-phase addition chlorination: dis. … Cand. tech. sciences. Kemerovo-Tomsk, Gos-niikhlorproekt. DSP, 1970. 187 p.
Miroshnikov A.M., Tsygankov D.V., Polozova A.V. Atomic refraction by oxygen as a method for assessing the activity of oxygenates for internal combustion engines. Chemical Bulletin. 2025. 8 (1). 1. https://doi.org/10.58224/2619-0575-2025-8-1-4