Thermodynamic and Electrochemical Analysis of Synergistic Corrosion Inhibition Performance of Natural Polysaccharides with Metal Halides on Mild Steel in Hydrochloric Acid Solution

Brindha, T.; Parimalagandhi, Karuppannan; Mallika, J.

doi:10.1007/s40735-019-0296-7

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Kinetic Studies On Corrosion Process2

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2021

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“…E a and ∆H values are positive in sign. The positive values of E a reveal that a highly adsorption on the CS surface (54) . The values of ∆H indicate that adsorption of AO extract is endothermically on the CS surface (31,53,(55)(56)(57) .…”

Section: Kinetic Studies On Corrosion Processmentioning

confidence: 93%

“…When compared to the other three temperatures, ∆G ads has the highest negative value of -18.4KJmol -1 at 303K and the lowest negative value of -16.4KJmol -1 at 333K. The negative values of entropy of adsorption (∆S ads ) show that an ethanolic extract of AO leaves form a protective layer on the CS surface (53,54,(56)(57)(58)60) . Result of thermodynamic parameters are given in Table 7 .…”

Section: Thermodynamic Studies On Adsorption Processmentioning

confidence: 99%

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