Abstract

ABSTRACTThe corrosion properties of steel have been studied in acidic solution containingpolymeric inhibitors. 2-Phosphonobutane-1, 2, 4 tricarboxylic acid (PBTCA) wasused as a corrosion inhibitor for carbon steel in cooling water either alone or incombination with polyvinylpyrrolidone (PVP). The inhibiting properties of thosecompounds were investigated with the aid of the weight loss method, open circuitpotential measurements and potentiodynamic techniques. The inhibition efficiencyat various inhibitor concentrations was found to increase with increasing PBTCAconcentration. A considerable improvement in the protection efficiency wasachieved by adding polyvinylpyrrolidone to the PBTCA solution. A mixturePBTCA and PVP acts as a synergic inhibitor and found to increase the inhibitionefficiency to 96.7%.

The article was added to IASJ on 2013-10-03

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