Utilization of cigarette clove, tobacco leaf, and coffee as iron inhibitor

Corrosion is an event of metal degradation due to reaction to the environment. One way to prevent corrosion is to use inhibitors. This inhibitor can prevent the rate of corrosion of metals by providing a coating on the metal of an extract of organic material having N, S, O, P atoms with the aid of solvents and in the heat process. This study aims to determine the effect of inhibitor material variations on corrosion rate on iron, and to know which inhibitors are more efficient to prevent the rate of corrosion. The research method used is experimental method that is weight loss with the result of data analysis using analysis of variance in software minitab 17. The result of research shows that there is influence to the variation of inhibitor material on the decrease of corrosion rate. From the research results obtained data which inhibitor more efficient to prevent corrosion, tobacco leaf has average corrosion rate of 0,000049 gram / cm2 hour and efficiency of equal to 43,40%, while for coffee decrease of average corrosion rate is 0, 000158 gram / cm2 hour and its efficiency is 23.26%, while the clove cigarette has an average corrosion rate of 0,000094 gram / cm2 hours and efficiency 33,34%. We can see that the most efficient inhibitor is from tobacco extract with the lowest corrosion rate and the greatest efficiency.