A COMPARATIVE STUDY OF GLYCINE, GLUTAMIC ACID AND ASPARTIC ACID AS CORROSION INHIBITORS FOR BRASS IN ALKALINE MEDIUM

Maneesha Pareek; Dr. V. K. Swami

Volume : VIII, Issue : I, January - 2019

A COMPARATIVE STUDY OF GLYCINE, GLUTAMIC ACID AND ASPARTIC ACID AS CORROSION INHIBITORS FOR BRASS IN ALKALINE MEDIUM

Maneesha Pareek, Dr. V. K. Swami

Abstract :

This study aimed to investigate the effectiveness of glycine, glutamic acid and aspartic acid as corrosion inhibitor for ass. The inhibiting properties of all three amino acids as ass corrosion inhibitors in a strong basic solution of 1.0 N Sodium Hydroxide was studied by weight loss techniques and SEM technique. Weight loss measurements revealed that these compounds have a protective effect against ass corrosion and their inhibition efficiencies depend on the structure of these amino acids. The toxicity of organic and inorganic corrosion inhibitors to the environment has prompted the search for safer corrosion inhibitors such as green corrosion inhibitors as other more environmental friendly corrosion inhibitors most of which are biodegradable and do not contain heavy metals or other toxic compounds. Amino acids have the ability to control the corrosion of ass and onze .The corrosion rate decreases with increasing amino acid concentration . The order of inhibition efficiency of the three amino acids is glycine < glutamic acid < aspartic acids