الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The internal corrosion of pipelines, tanks and oil transport equipment is one of the most serious problems facing oil industry, as it can cause losses of up to millions of dollars a year. Therefore, a great deal of effort has to be done to protect these lines, tanks and equipments from corrosion which greatly affects the safety of people in the first place and production in addition to its damage to the surrounding environment, which led to the development of ways to reduce and avoid this erosion. The first line of defense to protect against the internal corrosion of equipment, lines and tanks used in the petroleum industry is the injection of inhibitors for this corrosion. this study deals with two new organic compounds BAT: N, N” bis (4-aminophenyl) terephthalamide and BHT: N, N” bis (4-hydroxyphenyl) terephthalamide and the study of the effect of these compounds as corrosion inhibitors of mild steel in the presence of one mole of hydrochloric acid, and the calculation of corrosion rates in the presence and absence of these compounds using weight loss techniques, potentiodynamic polarization and open circuit potential measurement, as well as electrochemical impedance spectroscopy, in addition to screening and study of inhibitor films and comparing them with the mild steel sample without inhibitors using scan electron microscopy (SEM) to study the shape of the outer surface of the films and using (EDX), (XRD) analysis, finally, the new organic compounds prepared studied by using quantum mechanics program.