| WANG Zhao-di,SI Yun-sen,YU Qiang,CHEN Ning.The Inhibitive Effect of a Mannich Corrosion Inhibitor and KCl Formulation on the Corrosion of A3 Steel in Acid Medium[J],39(6):44-45,50 |
| The Inhibitive Effect of a Mannich Corrosion Inhibitor and KCl Formulation on the Corrosion of A3 Steel in Acid Medium |
| Received:July 27, 2010 Revised:December 10, 2010 |
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| DOI： |
| KeyWord:corrosion inhibitor Mannich formulation AC impedance A3 steel |
| Author | Institution |
| WANG Zhao-di |
Kunming University of Science and Technology, Kunming , China |
| SI Yun-sen |
Kunming University of Science and Technology, Kunming , China |
| YU Qiang |
Kunming University of Science and Technology, Kunming , China |
| CHEN Ning |
Kunming University of Science and Technology, Kunming , China |
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| Abstract: |
| A new acidizing corrosion inhibitor ZD-1 was synthesized by Mannich reaction with aldehyde, acetone and diethylamine. Tests of the corrosion inhibition efficiency,potentiodynamic polarization curve and electrochemical impedance spectroscopy(EIS)were taken in the 5%(mass fraction)H2SO4solution which ZD-1(1 g/ L)and KCl by different concentration were added in order to studying the synergistic corrosion inhibition of ZD-1 and KCl in H2SO4solution on A3 steel. The results show that ZD-1 and KCl are cathodic-controlled mixed inhibitor. The formulation of ZD-1(1 g/L)and KCl(1 mmol/ L)have outstanding corrosion inhibition effect on A3 steel, and the corrosion inhibition efficiency can reach to 93.84%. |
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