Investigation of Adsorbability of Water- and Hydrocarbon-Soluble Corrosion Inhibitors onto Carbon Steel and Copper

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The data on adsorbability of oleamides and hexylamine, cyclohexylamine, morpholine, piperidine, and piperazine salts of oleic acid are systematized in this study. The protective mechanism of these compounds is studied in order to reveal a correlation between the inhibiting ability and the calculated parameters of the molecules. A procedure for measuring the Volta potential difference using a Poverkhnost-II high-sensitivity digital electrometer under the conditions when water- and hydrocarbon-soluble corrosion inhibitors interact with the steel and copper surface is elaborated. It has been proven that a high-efficiency corrosion inhibitor can be designed based on the data on its donor properties and adsorbability.

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Fig. 1.


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    Rozenfel’d, I.L., Ingibitory korrozii (Corrosion Inhibitors), Moscow: Khimiya, 1977.

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    Tsarev, B.M., Kontaktnaya raznost' potentsialov (Contact-Potential Difference), Moscow: Gos. Izd. Tekhniko-Teoreticheskoi Literatury, 1955.

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    Altsybeeva, A.I., Tronova, E.A., and Burlov, V.V., Tezisy dokladov Mezhdunarodnoi konferentsii “Ingibitory korrozii i nakipeobrazovaniya. Memorial I. L. Rozenfel’da” (14–17 oktyabrya 2014) (Proc. Int. Conference “Inhibitors of Corrosion and Scale Formation, in Memoriam of I. L. Rozenfel’d”, October 14–17, 2014), Moscow: Gubkin Russian State Univ. of Oil and Gas (National Research Univ.), 2014, p. 92.

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Correspondence to E. A. Tronova.

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Translated by D. Terpilovskaya

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Tronova, E.A., Altsybeeva, A.I. & Burlov, V.V. Investigation of Adsorbability of Water- and Hydrocarbon-Soluble Corrosion Inhibitors onto Carbon Steel and Copper. Prot Met Phys Chem Surf 55, 1294–1298 (2019).

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  • volta potential difference
  • inhibitor
  • electron-donating properties
  • oleamides
  • oleates