Abstract
This research includes an experimental study of tobacco extract to be used as natural corrosion inhibitors by applying it on steel pipe (Steel 355) buried in soil, by selecting a suitable extract. Two types of soil were studied (organic soil and clay soil). The steel pipes treated with tobacco extract were buried for a period of (five months), and the effectiveness of tobacco extract on pipes’ corrosion is studied. The results showed the effectiveness of the tobacco extract as an inhibitor of corrosion، as well as it is better than its standard counterparts in both studied soils (organic and clay). The inhibitory activity of both (tobacco extract and potassium chromate) was recorded in organic soil for the first month as (71.42and 58.9%) respectively. The inhibitory effectiveness was found in clay soil of both (tobacco extract، potassium chromate) for the first month as (67.65 and 54.05%)، respectively. The results of this study also showed a better inhibitory effect of the extract of tobacco in organic soil than in the clay soil during the study period (five months)، where the inhibitory effect of the tobacco extract was for the fifth month in both organic soil and clay soil (38.55 and 34.99%) respectively.
Published Version
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