Open AccessCorrosion Inhibition of Rosemary Oil on High Carbon Steel in Sulphuric Acid Medium
Author(s) -
O. A. Odunlami,
O.T. Olomukoro,
Roland Tolulope Loto
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/811/1/012031
Subject(s) - corrosion , carbon steel , chemistry , corrosion inhibitor , carbon fibers , nuclear chemistry , metallurgy , materials science , organic chemistry , composite material , composite number
Rosemary oil was investigated on carbon steel in 0.5M sulphuric acid through weight loss technique. It was observed that weight loss, inhibitor efficiency and corrosion rate differ in concentration of the oil and exposure time. Maximum inhibitor efficiency of 78.45% was obtained at 10ml concentration of the oil. The performance of the oil was associated with the existence of organic compounds such as alkaloids, flavonoids, tannins, among others which form a protective film and act as a barrier against corrosion attack in sulphuric acid environment.