Effect of Temperature on the Corrosion Inhibition of Trans-4-Hydroxy-4^′-Stilbazole on Mild Steel in HCl Solution

Abstract

The inhibition and the effect of temperature and concentration of trans-4-hydroxy-4 -stilbazole on the corrosion of mild steel in 1 M HCl solution was investigated by weight loss experiments at temperatures ranging from 303 to 343 K. The studied inhibitor concentrations were between 1×10 −7 M and 1×10 −3 M. The percentage inhibition increased with the increase of the concentration of the inhibitor. The percentage inhibition reached about 94% at the concentration of 1 × 10 −3 M and 303 K. On the other hand, the percentage inhibition decreased with the increase of temperature. Using the Temkin adsorption isotherm, the thermodynamic parameters for the adsorption of this inhibitor on the metal surface were calculated. Trans-4-hydroxy-4 -stilbazole was found to be a potential corrosion inhibitor since it contained not only nitrogen and oxygen, but also phenyl and pyridine rings that are joined together with a double bond (-C=C-) in conjugation with these rings.

UAE Neem Extract as a Corrosion Inhibitor for Carbon Steel in HCl Solution

“…The specimens were polished with 600 grade emery paper, rinsed with distilled water, degreased with acetone, dried, and finally weighed precisely on an accurate analytical balance prior to each experiment. [14,15], a 250 mL round bottom flask fitted with a reflux condenser and long glass rod which served to hook and immerse the specimen and in turn immersed in a thermally controlled water bath was used.…”

UAE Rhazya Stricta Decne extract as a corrosion inhibitor for mild steel in HCl solution

“…For the weight-loss measurements (Nahlé, 2001, Nahlé et al, 2005, 2010, 2012a, 2012b, 2013, a 250-mL round bottom flask was fitted with a reflux condenser and long glass rod, which served to hook and immerse the specimen, the flask then was immersed in a thermally controlled water bath.…”

Corrosion Inhibition of 1,4-di (1-vinyl-3-methylimidazolium) Benzene Dibromide on Mild Steel in HCl Solution

“…These inhibitors include quaternary ammonium salts [3][4][5][6][7][8][9][10], polyamino-benzoquinone polymers [11], azoles [12], substituted aniline-N-salicylidenes [13], amides [14], heterocyclic compounds [15,16], and cationic surfactants [17,18]. Sulfur-containing inhibitors were also investigated by other authors [19][20][21][22][23][24]. The effect of ions addition, such as iodide [26], and chloride [27] on the inhibition efficiency of some organic compounds were studied by others.…”