SYNTHESIS AND SURFACE ACTIVITY OF SULPHATED AMIDES BASED ON OLEIC ACID AND MONOETHANOLAMINE
https://doi.org/.org/10.21285/2227-2925-2018-8-3-12-17
Abstract
This paper presents the results of a study aimed at synthesizing a potassium sulphated amide on the basis of olive oil and monoethanolamine. The surface-active properties and protective ability of this compound are investigated. During experiments, a gel-like odourless substance of a light colour was obtained. It is established that the synthesized compound decreases the surface tension from 22,07 dyn/cm to 20,95 dyn/cm across a concentration range of 0,033 mol/L to 0,2 mol/L. The compound structure was determined using the method of infrared spectroscopy. The IR spectra obtained are shown to contain the following absorption bands: at 874 cm-1, characteristic of the S-O bond; at 1164 cm-1, characteristic of the S=O bond; at 1505 cm-1 and 1709 cm-1, related to the C=O and N-H bonds in the amide group. The protective ability of potassium sulphated monoethanolamide oleate is established, with its inhibiting coefficient being equal 2,5. It is concluded that the newly-synthesized surfactant can be successfully used for inhibiting corrosion in an acidic medium.
About the Authors
T. A. Tkacheva
Orenburg state University
Russian Federation
Russian Federation
V. N. Mezentseva
Orenburg state University
Russian Federation
Russian Federation
N. А. Chigrinеva
Orenburg state University
Russian Federation
Russian Federation
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Review
For citations:
Tkacheva T.A., Mezentseva V.N., Chigrinеva N.А. SYNTHESIS AND SURFACE ACTIVITY OF SULPHATED AMIDES BASED ON OLEIC ACID AND MONOETHANOLAMINE. Proceedings of Universities. Applied Chemistry and Biotechnology. 2018;8(3):12-17. (In Russ.) https://doi.org/.org/10.21285/2227-2925-2018-8-3-12-17
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