The effect of pyrrole-halide mixtures in inhibiting the dissolution of low-carbon steel in sulphuric acid

Adsorption and inhibition effect of 6-benzylaminopurine on cold rolled steel in 1.0M HCl

“…Up to now, many N-heterocyclic compounds, such as imidazoline derivatives [6], 1,2,3-trizaole derivatives [7], 1,2,4-trizaole derivatives [5,[8][9][10][11][12], tetrazole derivatives [13,14], pyrrole [15], pyridine derivatives [16][17][18], pyrazole derivatives [19][20][21][22], bipyrazole derivatives [23,24], pyrimidine derivatives [25], pyridazine derivatives [26], indole derivatives [27][28][29], benzimidazole derivatives [30][31][32][33][34], and quinoline derivatives [35] have been used for the corrosion inhibition of iron or steel in acidic media. Though the existing data show that numerous N-heterocyclic organic compounds have good anticorrosive activity, some of them are highly toxic to both human beings and environment.…”

Experimental and theoretical evaluation of N, N-Bis(2-pyridylmethyl)aniline as a novel corrosion inhibitor for mild steel in hydrochloric acid

“…pyrrole [1], pyrimidine derivatives [2], pyrazole derivatives [3,4], indole derivatives [5,6]. It is generally accepted that the adsorption characteristics of heterocyclic organic compounds are affected by the structures of the organic molecules, such as functional groups, steric factor and aromaticity [7].…”

Synergistic and hydrogen bonded interaction of alkyl benzimadazoles and urea pair on mild steel in hydrochloric acid: Adsorption, electroanalytical and theoretical studies

“…Among numerous inhibitors, hetero cyclic compounds are considered to be the most effective corrosion inhibitors for steel in acid solutions [4]. Different N-heterocyclic compounds were reported as reasonably good corrosion inhibitors for steel in acid media, such as imidazoline derivative [2,5], 1,2,3-triazole derivative [2,[6][7][8][9][10][11], benzotriazole [2,12,13], pyrole [2,14], pyridine derivatives [2,15,16], pyrazole derivatives [2,17], bipyrazole derivatives [2,18], pyrazine derivative [2,19], pyridazine derivative [2,20], indole derivative [2,21], benzimidazole derivatives [2,22,23], quinoline derivatives [2,24], purine derivatives [2,25,26] and tetrazole derivatives [2,[27][28][29]. They exhibit inhibition by adsorption on the metal surface, and the adsorption takes place through N, O and S atoms, as well as those with triple or conjugated double bonds or aromatic rings in their molecular structures.…”