Conclusions
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1.
A number of mixed anhydrides of alkylxanthic and phosphorus-containing acids have been synthesized, containing triple-coordinated and quadruple-coordinated phosphorus atoms, and the antiwear and antiseize properties of these products have been studied.
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2.
It has been shown that these mixed anhydrides have substantial advantages as antiwear additives over xanthate or phosphorus-containing additives.
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Literature cited
P. I. Sanin, E. S. Shepeleva, V. V. Sher, and A. V. Ul'yanova, Chemistry and Application of Organophosphorus Compounds. Proceeding of First Conference [in Russian] (1957), p. 112.
A. I. Grigor'eva, Khim. i Tekhnol. Topliv i Masel, No. 3 (1963).
E. Wottgen and D. Luft, J. Prakt. Chem.,30, Nos. 1–2, 93 (1965).
L. S. Kharchenko, S. A. Krekoten, and Yu. T. Gordash, Author's Certificate 260,059; Byul. Izobret., No. 3 (1970).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 52–54, January, 1972.
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Kharchenko, L.S., Gordash, Y.T. Mixed anhydrides of alkylxanthic and phosphorus-containing acids as antiwear additives for lubricating oils. Chem Technol Fuels Oils 8, 69–71 (1972). https://doi.org/10.1007/BF00728982
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DOI: https://doi.org/10.1007/BF00728982