A Study on Corrosion Protection of Aluminium Surface by Chlorine Substituted Piperidin-4-One in Sulfuric Acid Medium

Abstract

The corrosion protection of aluminium surface by the inhibitor 3, 5-diethyl 2, 6-diphenyl p-chloro Piperidin-4-one in 1N Sulfuric acid medium is examined by using mass loss measurement. Electrochemical studies are used to analyze the corrosion inhibiting nature of the inhibitor. The experimentation is carried out at room temperature. The findings of mass loss measurement indicate that the studied organic inhibitor molecule exhibit corrosion inhibition efficiency on aluminium in sulfuric acid medium. The findings of polarization studies show that inhibitor 3, 5-diethyl 2, 6diphenyl p-chloro Piperidin-4-one behaves as both anodic and cathodic type corrosion inhibitor. From the increasing value of charge transfer resistance (Rct) with decreasing nature of double layer capacitance (Cdl) value the corrosion inhibiting nature is observed to increase with the increase of inhibitors concentration at constant acid strength. The adsorption of the inhibitor 3, 5-diethyl 2, 6-diphenyl p-chloro Piperidin-4-one on aluminium obeys Langmuir's adsorption isotherm.

C6h18n4 Behaviour on Reinforcing-Steel Corrosion in Concrete Immersed in 0.5 M H2so4

“…-2, that increase in the C 6 H 18 N 4 admixture concentration in the steel-reinforced concrete samples for the H 2 SO 4 medium leads to increase in the corrosion-inhibition efficiency. [55][56][57] Further analyses of this performance model by the C 6 H 18 N 4 admixture, via probing of mathematical correlation modeling, 35,46,49,58 as per ASTM G16-13(2019), 36 indicated that the inhibition efficiency, η (%), exhibited a relationship with the C 6 H 18 N 4 concentration, ρ (M), which could be represented as:…”