Effect of Ocimum sanctum (Tulasi) Extract Inhibitors for Aluminum 8088 Alloy in a 1 M HCl Solution
DOI:
https://doi.org/10.48165/Keywords:
Aluminum 8088, Potentiodynamic polarization, Corrosion inhibitionAbstract
Two environmental friendly Ocimum sanctum (Tulasi) inhibitors 6-diallylamino-1,3,5-triazine 2,4- dithiol monosodium (DAN) and 6- dibutylamino-1,3,5-triazine-2,4-dithiol mono sodium (DBN) were synthesized and their corrosion inhibition for aluminum 8088 in a 1 M HCl solution was studied using weight loss methods, electrochemical measurements, and scanning electron microscopy (SEM) techniques. The inhibition efficiency of both DAN and DBN improved with increases in inhibitorconcentration but decreased with increases in temperature. Results from potentiodynamic polarization and EIS showed that the corrosion inhibition efficiency of DAN and DBN was excellent. The adsorption of inhibitors on the aluminum 8088 surface followed Langmuir adsorption isotherms. Morphology observation revealed that the aluminum 8088 was greatly protected by these Ocimum sanctum (Tulasi) inhibitors.
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