Synthesis and anticorrosive effect of epoxy‐allylmenthols on steel in molar hydrochloric acid

Abstract

If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -This paper seeks to evaluate the effect of natural menthols and their synthesised epoxy-allylmenthols as a non-toxic inhibitor on the corrosion of steel in HCl media at various temperatures. Design/methodology/approach -Epoxy-allylmenthols were synthesised and characterised. Gravimetric technique was used to measure the efficiency of corrosion inhibition. Findings -Modified allylmenthol (to epoxy-allylmenthol) exhibited a good inhibition. But its efficiency decreases with temperature.Research limitations/implications -The inhibition efficiency increases with the concentration of inhibitor to attain 74 percent at 0.8 g/l. Practical implications -The efficiency of menthol derivatives increases with the concentration but decreases with rise of temperature in the 303-328 K range. Natural inhibitor can be used in chemical cleaning and pickling processes. Originality/value -The originality of this work is to find a safe and cheap eco-friendly inhibitor from natural plants.

Evaluation of the inhibitive effect of essential oil of Lavandula multifida L., on the corrosion behavior of C38 steel in 0.5 M H2SO4 medium

“…Also, steel has found wide applications in a broad spectrum of industries and machinery; however, its tendency to corrosion made it inadequate for exposures in contact with aggressive acids [1]. The use of inhibitors is one of the most widespread strategies to restrain corrosion [2]. Investigations conducted on corrosion inhibition in acid media showed that a great number of effective inhibitors are organic species containing heteroatoms (N, O, and S) in their long carbon chain/aromatic structure [3].…”

Fennel (Foeniculum Vulgare) Essential Oil as Green Corrosion Inhibitor of Carbon Steel in Hydrochloric Acid Solution

“…We have proved that the use of herbs as extracts, oils or purified compounds can be used as new type of green inhibitors for acidic corrosion of steel. Menthols [12], artemisia [13], eugenol and acetyleugenol [14], rosemary oil [15], thyme [16], jojoba oil [17], ginger [18], bifurcaria bifurcata extract [19], etc., have been investigated. Fennel (Foeniculum vulgare), member of the family of Apiaceae, grows wild in arid areas around Mediterranean Sea, and studies on the chemical composition of its essential oil are numerous in the literature [20][21][22].…”

Testing Natural Fenugreek as an Ecofriendly Inhibitor for Steel Corrosion in 1 M HCl

“…A part of the program of our laboratory is devoted to research new non-toxic inhibitors. Natural plants are added as extract, oil or pure compounds and are the subject of various contributions: limonene [7], ginger [8], henna [9], jojoba oil [10], rosemary oil [11], artemisia oil [12], bgugaine [13][14][15], thym [16], eugenol and acetyleugenol [17], pulegone [18], menthols [19], cedar [20], rosmarinus [21], pulegone [22], have been found to be very efficient corrosion inhibitors for metal in aggressive media. Our choice is made on fenugreek seeds, which contain the unique major free amino acid 4-hydroxyisoleucine (4-OH-ILeu) [23], to test as a non-toxic inhibitor for the protection of steel against corrosion in acid media.…”