Investigation of Aloe lateritia Gel as Corrosion Inhibitor for Mild Steel in 2 M HNO3 and 1 M H2SO4 Media
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Date
2016-01-15
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Publisher
Scientific Research
Abstract
Corrsion inhibition of Aloe lateritia gel for Mild steel in 2 M HNO 3 and 1 M H 2 SO 4 solutions was in-
vestigated by potentiodynamic polarization, Scanning electron microscopy (SEM) and Foutier
transform infrared (FT-IR). Inhibition efficiency increased with the increase of the concentration
of the gel. The optimal concentration of the gel gives maximum inhibition efficiency of 77.4% and
70.3% in 1 M H 2 SO 4 and 2 M HNO 3 respectively. Polarization plots shows that, the gel works as a
mixed type inhibitor altering both cathodic and anodic reaction. SEM proves the uniform and pit-
ting corrosion at the surface of Mild steel in 1 M H 2 SO 4 and 2 M HNO 3 respectively. Using FT-IR po-
tential function groups from pure gel and some stretch shift was observed from corrosion product
and some stretch shift from corrosion products was observed
Sustainable Development Goals
SDG 9: Industry, Innovation, and Infrastructure, SDG 12: Responsible Consumption and Production, SDG 6: Clean Water and Sanitation.
Keywords
Corrosion Inhibitor, Mild Steel, otentiodynamic Polarization, Sulfuric Acid, Nitric Acid