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- W4382023400 abstract "The corrosion inhibition and adsorption processes of 1,2-diaminoanthraquinone (DAQ) on mild steel in HCl was studied at different temperatures (303 – 333 K) by means of weight loss measurement and UV-visible spectrophotometric methods. The results indicate that the studied compound exhibits good performance as inhibitor for mild steel corrosion in 1 M HCl. The inhibition efficiency increases with decreasing temperature and increasing concentration of inhibitor. It has been determined that the adsorption of DAQ on mild steel obeys the Temkin adsorption isotherm at all studied temperatures with negative values of ∆Goads, suggesting a stable and a spontaneous inhibition process. Mechanism of physical adsorption is proposed from the values of Ea and ∆Goads obtained. The UV-visible absorption spectra of the solution containing the inhibitor after the immersion of mild steel specimen indicate the formation of a DAQ-Fe complex. Quantum chemical approach was further used to calculate some electronic properties of the molecule in order to ascertain any correlation between the inhibitive effect and molecular structure of DAQ." @default.
- W4382023400 created "2023-06-27" @default.
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- W4382023400 date "2011-04-01" @default.
- W4382023400 modified "2023-10-11" @default.
- W4382023400 title "1,2-Diaminoanthraquinone as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid: Weight Loss and Quantum Chemical Study" @default.
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- W4382023400 doi "https://doi.org/10.1016/s1452-3981(23)15045-0" @default.
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