EXPERIMENTAL STUDY OF THE ANTI-CORROSION PROPERTIES OF ANIMAL FATS

The study of corrosion processes, the development of methods for protecting metals from corrosion are among the urgent modern scientific and technical problems. A common type of protection against metal corrosion is the use of inhibitors that reduce the rate of corrosion of metals and alloys when in contact with aggressive environments in industrial conditions. Currently, the creation of available, non-toxic and inexpensive corrosion inhibitors based on animal raw materials for the protection of metals and alloys using environmentally friendly technologies is one of the leading areas in the field of "natural" chemistry.

 In this paper, the anticorrosive efficiency of animal fat for carbon steel СТ3 in an aggressive environment with a concentration of 1.0 mol / l was studied using a gravimetric method. Pure and acidic solutions were obtained as an aggressive environment. The inhibitor efficiency was studied in an amount of 0.5-2.0 g / l under normal standard environmental conditions. Based on the mass loss of steel plates in various aggressive environments and the calculation of the total mass loss for 1 year, the percentage efficiency of the anti-corrosion protection indicator of steel plates in a solution with animal fat was determined. It was found that high efficiency is achieved due to the physiosorption of the inhibitor on the surface of the steel plate. As a result, it was found that animal fat creates a glossy protective layer on the surface of the steel plates, preventing their mass loss. At the same time, an increase in the concentration of the inhibitor showed an increase in anti-corrosion efficiency.