Effect of Solvents on the Corrosion Inhibition of Copper by 1,2,3-Benzotriazole

Thermodynamic transfer study of various metal chlorides from water to formamide and dimethylformamide by EMF measurements

“…Iterative procedures [14,[29][30][31][32][33] were employed to calculate K 1 , K 2 ,˛1,˛2 and E • . For this purpose, M 2+ and Cl − were first evaluated at any ionic strength I (I M 2+ = 2m; I Cl − = m) from Eq.…”

Amino Acid Interleaved Layered Double Hydroxides as Promising Hybrid Materials for AA2024 Corrosion Inhibition

“…More recently, the inhibition of aluminum pitting was also reported 34. Even more interestingly, for AA2024, some αAA molecules inhibit the corrosion of copper, the element that is enriched in the cathodic active intermetallic phase of this aluminum alloy,35 and this inhibition is as good as that of 1,2,3‐benzotriazole, a reference in the domain 36. Alanine or phenylalanine also inhibit nickel corrosion37 and carbon steel corrosion,38 respectively.…”

Thermodynamic determination of solvation potentials of divalent metal chlorides (MCl2) in iso–dielectric media by EMF measurements

“…Iterative procedures [1][2][3][4][32][33][34][35] were employed to calculate K 1 , K 2 , a 1 , a 2 , and E°. For this purpose, c M 2 þ and c Cl À were first evaluated at any ionic strength I ðI M 2 þ ¼ 2m; I Cl À ¼ mÞ from equation (9) using the values of A and B from equations (10) and 11, respectively.…”

“…We extended these studies to MCl 2 in 0.20, 0.45, and 0.70 mass fraction of dioxane in water [2]. We also investigated the corrosion inhibition effects [3,4] of 1,2,3-benzotriazole, aliphatic carboxylic acids, and amino acids towards copper in the dilute aqueous solutions of CuCl 2 . Now in continuation of earlier work [1][2][3][4], we selected for the present studies the isodielectric solvent mixtures of formamide (FD) + N,N-dimethylformamide (DMF) and formamide (FD) + 1,4-dioxane (D) as there was no effect of dielectric constant in iso-dielectric solvents.…”

“…We also investigated the corrosion inhibition effects [3,4] of 1,2,3-benzotriazole, aliphatic carboxylic acids, and amino acids towards copper in the dilute aqueous solutions of CuCl 2 . Now in continuation of earlier work [1][2][3][4], we selected for the present studies the isodielectric solvent mixtures of formamide (FD) + N,N-dimethylformamide (DMF) and formamide (FD) + 1,4-dioxane (D) as there was no effect of dielectric constant in iso-dielectric solvents. Our main focus of these investigations is to analyze the role/effects of different solvents (water, pure organic solvents, organic-aqueous mixtures, and iso-dielectric solvent mixtures) in the solvation of metal chlorides (MCl 2 ) to compare the ion-solvent interactions among them.…”