Synthesis and characterization of some corrosion inhibitors

Abstract

Corrosion technology applies chemistry, metallurgy, and other scientific knowledge to prevent or control corrosion damage. The different ways to prevent corrosion, i.e., chemical coatings, corrosion inhibitors and cathodic protection. Impressed current and sacrificial anode methods are used to protect the metal surface, which comes under cathodic protection. Corrosion inhibitors have been found more reliable and successful out of these methods. However, several corrosion inhibitors are reported to be used for corrosion control. But still, there is a need for low-cost, non-toxic, and efficient corrosion inhibitors. Present work deals with our efforts in the same direction. This thesis presents a detailed study of the corrosion inhibition efficiency on mild steel surfaces by using different low-cost, eco-friendly, and novel synthesized inhibitors. Some nano, green, organic, and inorganic corrosion inhibitors have been synthesized and studied on mild steel (MS) in an acidic medium. Green corrosion inhibitors are of recent interest because of their cost- effectiveness, biodegradability, and eco-friendly characteristics. The Plant extract have been acknowledged as important assets for taking care of our various needs. Out of those, one of the most important properties is to have excellent corrosion inhibition on the metal surfaces. In the current work, we have reported the corrosion inhibition efficiency of Citrus limetta (CL) peel oil on mild steel surfaces. newline newlineLiquid crystals are primarily known for their application in electronic display system, and their application potential in preventing corrosion has rarely been explored. This work elucidates the application of a room temperature anthraquinone based discotic liquid crystal 1,5-dihydroxy- 2,3,6,7-tetrakis (3,7-dimethyloctyl oxy)-9,10-anthraquinone 3 (RTAQ) as a corrosion inhibitor newlineon mild steel surfaces. It also attempts to bring out the importance of mesogenic organization towards inhibiting corrosion for metals. newline