INFLUENCE OF CASSIA ALATA LEAVES ON ALUMINIUM IN 1.0N HYDROCHLORIC ACID

Authors

  • A. Petchiammal
  • S. Selvaraj.

Keywords:

Aluminium, Corrosion, Cassia alata leaves, Mass loss, Adsorption isotherm.

Abstract

The inhibitive nature of alcoholic extract of Cassia alata leaves toward the corrosion of aluminum in 1N HCl was investigated by using mass loss measurement with various contact period and temperature. The observed results suggest that the percentage of inhibition efficiency is enhanced with increase of inhibitor concentration and temperature. In temperature studies, the adsorption of inhibitor on the metal surface takes place through chemisorptions process. The calculalated values of ∆Hads, ∆Gads suggests that the adsorption may be endothermic and spontaneous process. It was found out that the adsorption of CAL inhibitor follows Langmuir adsorption isotherm. Also the protective film formed on the metal surface may confirmed by UV, FT-IR and EDX spectral studies.

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Published

01-01-2013

How to Cite

Petchiammal, A., & Selvaraj., S. (2013). INFLUENCE OF CASSIA ALATA LEAVES ON ALUMINIUM IN 1.0N HYDROCHLORIC ACID. Caribbean Journal of Sciences and Technology, 1(1), 123–130. Retrieved from https://caribjscitech.com/index.php/cjst/article/view/106

Issue

Section

Research Article