Abstract:In this research, the corrosion inhibition of mild steel using pawpaw and neem leaves extracts in sulphuric acid medium was studied, and the inhibitive properties of the two extracts were compared. Standard characterization and Fourier Transform Infrared Spectroscopy (FTIR) techniques were used to determine phytochemical constituents and the functional groups present in the extracts respectively. The corrosion of the mild steel was studied using weight loss method, to determine the loss in weight of the mild steel when immersed in the corroding medium with and without the leaves extracts respectively. Mild steel weight loss is a measure of the extent of corrosion because the higher the weight loss the higher the rate of corrosion and vice versa. Generally, the weight loss decreased in the presence of the extracts; which indicated that the extracts were effective corrosion inhibitors. The Scanning Electron Microscopy carried out to determine the morphology of the uncorroded, corroded mild steel with and without the extracts revealed that the surface of the uncorroded mild steel has the smoothest face, while the surface of the corroded mild steel with extracts is comparatively smoother than the surface of the corroded mild steel without extracts; showing that the extracts have reduced corrosion. Comparatively, mild steel corroded in the presence of neem leaf extract has smoother surface and lower weight loss; which indicated that neem leaf extract is a better corrosion inhibitor than pawpaw leaf extract.
Keywords:Mild steel, Corrosion Inhibition, Sulphuric acid, Pawpaw Leaf, Neem Leaf.

Title:COMPARATIVE ANALYSIS OF CORROSION INHIBITION OF MILD STEEL USING PAWPAW AND NEEM LEAVES EXTRACTS IN SULPHURIC ACID MEDIUM
Author:CHUKWUEZE, G.N., ANEKE, N.A.G.
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals

Abstract:This study contributed to ongoing research on the conversion of waste biomasses into energy and other useful products, by investigating the viability of unripe plantain and bitter yam peels in the production of glucose by acid hydrolysis, using hydrochloric acid. The glucose yields from the waste biomasses were analyzed and compared. The chemical constituents in both untreated and treated waste biomasses were determined using standard characterization techniques; after which the functional groups present in the samples were analyzed using FTIR spectra techniques. The results obtained revealed that the cellulose content of the samples of unripe plantain is higher. It also showed that the cellulose content of the waste biomasses increased after treatment while other constituents decreased; meaning more glucose can be synthesized by acid hydrolysis of the samples. The effect of substrate and acid concentrations were equally studied; which revealed that generally, the yield of glucose increased as the concentrations of the acid and the substrate are increased. Thus, unripe plantain and bitter yam peels are good sources of glucose by acid hydrolysis; though unripe plantain peel yielded more glucose than bitter yam peel.
Keywords:Glucose, Unripe plantain peel, Bitter yam peel, Cellulose, Acid hydrolysis.

Title:INVESTIGATION OF THE CONCENTRATION OF GLUCOSE PRODUCED FROM PLANTAIN AND BITTER YAM PEELS USING HYDROCHLORIC ACID MEDIUM
Author:UWAJEH, A.F., ANINWEDE, C. S., OMOTIOMA, M.O.
ISSN 2394-9651
International Journal of Novel Research in Physics Chemistry & Mathematics
Novelty Journals