Adsorption isotherm of PFA corrosion inhibitor which obtained based on paraphenylenediamine, Formalin, and Alanin

Abdusalomov Abdumalik; Melikulova Gavkhar

Authors

Abdusalomov Abdumalik Assistant Termez State University of Engineering and Agrotechnologies. Termez, Uzbekistan
Melikulova Gavkhar Doctor of Philosophy (PhD), Associate Professor Tashkent Institute of Chemical Technology. Tashkent, Uzbekistan.

Abstract

The process of adsorption is desorption of water molecules by adsorbing inhibitor molecules on the metal surface, and this process can also be described as an exchange process. From this we can see that the inhibitor is adsorbed on the metal surface and covers the surface (γ) as the inhibitor concentration increases, the surface is covered to a higher degree and the efficiency increases. θ is a quantity indicating the effectiveness of the inhibitor and is taken as 100. Several types of isotherms have been used to describe this process[1-5]. Freundlich adsorption isotherms were obtained, which can be expressed as follows:

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