EXPERIMENTAL AND THEORETICAL STUDIES OF MEDIA EFFECTS ON COPPER CORROSION IN ACIDIC ENVIRONMENTS CONTAINING 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE

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LASHGARI M.; ARSHADI M.R.; BIGLAR M.

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Paper Information

Journal: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS) Year:2010 | Volume:7 | Issue:2 Page(s): 478-486

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Title

EXPERIMENTAL AND THEORETICAL STUDIES OF MEDIA EFFECTS ON COPPER CORROSION IN ACIDIC ENVIRONMENTS CONTAINING 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE

Author(s)

LASHGARI M. | ARSHADI M.R. | BIGLAR M. | Issue Writer Certificate

Keywords

COPPER CORROSION INHIBITORS

MEDIA EFFECT

AUTOCATALYSIS

SPECIFIC ADSORPTION

MOLECULAR ELECTROCHEMISTRY

Abstract

Corrosion behaviour of copper metal in acid solutions (HCl, H2SO4 and H3PO4) containing 2-amino-5-mercapto-1,3,4-thiadiazole (AMT) was investigated experimentally and theoretically via gravimetric, potentio-dynamic and quantum electrochemical approaches. Similar behavior was observed for H2SO4 and H3PO4 media, and related to the nature of anions at metal/solution interface. With regard to HCl, however, the rate of corrosion was determined to be low at initial stages, but high later on using an auto-catalyzing mechanism. In the presence of AMT, the experimental studies revealed that this molecule was a good anodic-type inhibitor causing substantial changes in corrosion potential. Moreover, its adsorption obeys the Langmuir isotherm. The values of DGads were determined and correlated to the inhibitor powers. Finally, the influence of media (anions) on metal corrosion was also investigated from molecular point of view by calculations of the copper-anions interaction using density functional theory.

Cites

AN EXPERIMENTAL AND THEORETICAL INVESTIGATION ON A SCHIFF BASE-COBALT COMPLEX AS CORROSION INHIBITOR IN HCL SOLUTION ON MILD STEEL

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APA: Copy

LASHGARI, M., BIGLAR, M., & ARSHADI, M.R.. (2010). EXPERIMENTAL AND THEORETICAL STUDIES OF MEDIA EFFECTS ON COPPER CORROSION IN ACIDIC ENVIRONMENTS CONTAINING 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), 7(2), 478-486. SID. https://sid.ir/paper/282395/en

Vancouver: Copy

LASHGARI M., BIGLAR M., ARSHADI M.R.. EXPERIMENTAL AND THEORETICAL STUDIES OF MEDIA EFFECTS ON COPPER CORROSION IN ACIDIC ENVIRONMENTS CONTAINING 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS)[Internet]. 2010;7(2):478-486. Available from: https://sid.ir/paper/282395/en

IEEE: Copy

M. LASHGARI, M. BIGLAR, and M.R. ARSHADI, “EXPERIMENTAL AND THEORETICAL STUDIES OF MEDIA EFFECTS ON COPPER CORROSION IN ACIDIC ENVIRONMENTS CONTAINING 2-AMINO-5-MERCAPTO-1,3,4-THIADIAZOLE,” JOURNAL OF THE IRANIAN CHEMICAL SOCIETY(JICS), vol. 7, no. 2, pp. 478–486, 2010, [Online]. Available: https://sid.ir/paper/282395/en

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