Menu
Search
Filters
Close
Menu

10150 Study on Corrosion Inhibition of Dissymmetric Bis-Quaternary Ammonium with Imidazoline Ring

Picture for 10150 Study on Corrosion Inhibition of Dissymmetric Bis-Quaternary Ammonium with Imidazoline Ring
Available for download
Product Number: 51300-10150-SG
ISBN: 10150 2010 CP
Author: Min DU, Bin Jiang and Jing Zhang
Publication Date: 2010
$0.00
$20.00
$20.00
Dissymmetric bis-quaternary ammonium with imidazoline ring was studied for inhibition behavior in 1.0 mol·L-1 hydrochloric acid solution at room temperature by mass loss, potentio-dynamic polarization, electrochemical impedance spectrum (EIS) and scanning electron microscopy (SEM). The result of mass loss indicated that the inhibition efficiency increased with the increase in inhibitor concentration and was over 98 % with the addition of 50 mg·L-1 inhibitor. Polarization data showed that the compound acted as a cathodic inhibitor for Q235 steel by changing the OCP to more negative value and changing the anodic reaction progress in 1.0 mol·L-1 hydrochloric acid solution according to the double of ba. EIS results showed that the associated values of the charge transfer resistance (Rct) increased with increasing inhibitor concentrations and immersing time whereas the associated values of double layer capacitance (Cdl) decreased. These changes in the impedance parameters (Rct and Cdl) were indicative of adsorption of the compound on Q235 steel surface leading to the formation of a protective film. The relationship between molecular structure of the compound and the inhibition efficiency was investigated by PM6 quantum chemistry calculation. The correlations and theoretical conclusions were in good harmony with the experimental results. Key words: Dissymmetric bis-quaternary ammonium, corrosion inhibitor, PM6 quantum chemistry calculations
Dissymmetric bis-quaternary ammonium with imidazoline ring was studied for inhibition behavior in 1.0 mol·L-1 hydrochloric acid solution at room temperature by mass loss, potentio-dynamic polarization, electrochemical impedance spectrum (EIS) and scanning electron microscopy (SEM). The result of mass loss indicated that the inhibition efficiency increased with the increase in inhibitor concentration and was over 98 % with the addition of 50 mg·L-1 inhibitor. Polarization data showed that the compound acted as a cathodic inhibitor for Q235 steel by changing the OCP to more negative value and changing the anodic reaction progress in 1.0 mol·L-1 hydrochloric acid solution according to the double of ba. EIS results showed that the associated values of the charge transfer resistance (Rct) increased with increasing inhibitor concentrations and immersing time whereas the associated values of double layer capacitance (Cdl) decreased. These changes in the impedance parameters (Rct and Cdl) were indicative of adsorption of the compound on Q235 steel surface leading to the formation of a protective film. The relationship between molecular structure of the compound and the inhibition efficiency was investigated by PM6 quantum chemistry calculation. The correlations and theoretical conclusions were in good harmony with the experimental results. Key words: Dissymmetric bis-quaternary ammonium, corrosion inhibitor, PM6 quantum chemistry calculations
Product tags
Also Purchased
Picture for Modeling of Corrosion Mechanisms in the Presence of Quaternary Ammonium Chloride and Imidazoline Cor
Available for download

51316-7406-Modeling of Corrosion Mechanisms in the Presence of Quaternary Ammonium Chloride and Imidazoline Corrosion Inhibitors

Product Number: 51316-7406-SG
ISBN: 7406 2016 CP
Author: Juan Dominguez Olivo
Publication Date: 2016
$20.00
Picture for Prediction and Assessment of Ammonium Bisulfide Corrosion Under Refinery Service Conditions - Part 3
Available for download

Prediction and Assessment of Ammonium Bisulfide Corrosion Under Refinery Service Conditions - Part 3

Product Number: 51317--8929-SG
ISBN: 8929 2017 CP
Author: Richard Horvath
Publication Date: 2017
$20.00

Summarizes results from Phase III of the joint industry program (JIP) on refinery alkaline sour water (ammonium bisulfide) corrosion. Phase III included a comprehensive engineering analysis of data from all three phases of the Sour Water JIP.
Picture for Critical Micelle Concentration and CO2 Corrosion Inhibition Efficiency of Quaternary Amines
Available for download

51318-11476-Critical Micelle Concentration and CO2 Corrosion Inhibition Efficiency of Quaternary Amines

Product Number: 51318-11476-SG
Author: Xiaoji Li / Sandeep Chawla / William Durnie / Jose Vera / Richard Woollam
Publication Date: 2018
$20.00

Rotating cylinder electrode (RCE) methodology with electrochemical impedance spectroscopy (EIS) measurement was applied to study the inhibition behavior of quaternary ammonium compounds on CO2 corrosion of X65 carbon steel.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support