FUW TRENDS IN SCIENCE & TECHNOLOGY JOURNAL
(A Peer Review Journal)
e–ISSN: 2408–5162; p–ISSN: 2048–5170
keywords: Acid corrosion, acid fluids, corrosion inhibitor, Delonix regia, mild steel
The corrosion inhibition properties of Delonix regia leaf extract (DLE), flower extract (DFE) and seed extract (DSE) in 0.5M HCl solutions were studied using weight loss technique. Delonixregia extracts inhibited the corrosion of mild steel in HCl solution. The inhibition efficiency increased with increasing concentration of the extracts at 30oC. The seed extract (DSE) was found to be more effective than both the leaf (DLE) and flower extracts (DFE) at the lowest concentration. The results obtained revealed that the adsorption of the inhibitor molecule onto mild steel surface accords with Langmuir adsorption isotherm.
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