DOI: https://doi.org/10.36719/2707-1146/43/25-29
                                                                                                                                                                                           Asya Shahverdiyeva
                                                                                                                      Ministry of Science and Education of the Republic of Azerbaijan

Institute of Petrochemical Processes named after academician Y.H.Mammadaliyev

PhD in Chemistry

[email protected]

Nergiz Salamova

Ministry of Science and Education of the Republic of Azerbaijan

Institute of Petrochemical Processes named after academician Y.H.Mammadaliyev 

PhD in Chemistry

[email protected]

Saida Ahmadbayova

Ministry of Science and Education of the Republic of Azerbaijan

Institute of Petrochemical Processes named after academician Y.H.Mammadaliyev 

PhD in Chemistry

[email protected]

UDK 661

                   PHYSICO-CHEMICAL PROPERTIES OF COMPLEX SALTS FORMED BY HEXADECANE, OCTADECANE  AND CIS-9-OCTADECENE ACIDS WITH MONOETHANOLAMINE

Abstract

In the article, the results of the study of the quaternary ammonium salt formed by hexadecanoic acid, a monobasic carbonic acid, with monoethanolamine, in laboratory conditions, in distilled, drinking, and sea waters contaminated with Balakhani oil with different degrees of mineralization, are given. The surface activity property of the products of different concentrations of this complex was studied using a tensiometer, the element composition was calculated by calculation, and the composition and structure were confirmed by infrared spectroscopy. The result of investigating the composition of the complexes formed by hexadecanoic acid with monoethanolamine by infrared spectroscopy proves that the reaction proceeds according to the scheme indicated in the article.

As a result of the research, it was determined that the mass share of carbon in the salt obtained on the basis of hexadecanoic acid and monoethanolamine is 68%, the share of hydrogen is 12.6%, the share of oxygen is 15%, and the share of nitrogen is 4.4%. The salt obtained on the basis of hexadecanoic acid and monoethanolamine shows high surface activity by reducing the surface tension at the water-air interface from 71.98 mN/m to 30.9 mN/m. The synthesized reagent has strong oil-collecting and oil-dispersing properties. With the application of this complex, it is possible to remove thin layers of oil from the water surface. The obtained complex is well soluble in ethyl and isopropyl alcohols.

Keywords: oil collection, oil dispersion, surface tension, surfactant, carbonic acids