E. Cano, D. Bastidas, J. Simancas
May 1, 2005
Citations
1
Influential Citations
19
Citations
Journal
Corrosion
Abstract
Abstract Carbon steel volatile corrosion inhibitor monitors (VCIM) were used to study the inhibition mechanisms of dicyclohexylamine ([C6H11]2NH) and dicyclohexylamine nitrite ([C6H11]2NH·HNO2) on carbon steel in environments polluted with 50 ppm and 250 ppm acetic acid (CH3COOH) or formic acid (HCOOH) vapors and at 100% relative humidity for 21 days of experimentation at 25°C. Experiments were performed using the potentiodynamic polarization and the electrochemical impedance methods. The impedance data satisfy the Kramers-Kronig relationships. The electrochemical measurements indicate that the corrosion rate decreased significantly in the acid vapors at high humidity when a volatile corrosion inhibitor was also present.