نتایج جستجو برای: Inhibition efficiencies

تعداد نتایج: 347389  

Babajide Fatile Ebenezer Aliu Robert Ogede Segun Abegunde,

With the current emergence of green chemistry to keep the environment safe, attention is being shifted towards using plant extracts as corrosion inhibitors. The inhibitive performances of Talinum triangulare leaf extract and Musa sapientum peel extract on the ZA-27 in 1.0 M and 1.5 M hydrochloric acid solutions were studied for 18 days using mass loss measurement. The corrosion inhibition effic...

2018
Dalia M Jamil Ahmed K Al-Okbi Shaimaa B Al-Baghdadi Ahmed A Al-Amiery Abdulhadi Kadhim Tayser Sumer Gaaz Abdul Amir H Kadhum Abu Bakar Mohamad

BACKGROUND Relatively inexpensive, stable Schiff bases, namely 3-((4-hydroxybenzylidene)amino)-2-methylquinazolin-4(3H)-one (BZ3) and 3-((4-(dimethylamino)benzylidene)amino)-2-methylquinazolin-4(3H)-one (BZ4), were employed as highly efficient inhibitors of mild steel corrosion by corrosive acid. FINDINGS The inhibition efficiencies were estimated based on weight loss method. Moreover, scanni...

Maryam Dehdab Mohammad Hossein Ghorbani

Inhibition efficiencies of three amine derivatives (Diethylenetriamine (I), Triethylenetetramine (II), and Pentaethylenehexamine (III)) have been studied on corrosion of carbon steel using density functional theory (DFT) method in gas phase. Quantum chemical parameters such as EHOMO (highest occupied molecular orbital energy), ELUMO (lowest unoccupied molecular orbital energy), hardness (η), po...

Journal: :iranian journal of analytical chemistry 2015
nasrin soltani

the corrosion inhibition characteristics of two synthesized schiff bases, namely n, n´-bis(2-hydroxy-6-nitrobenzaldehyde) benzidine  and n, n´-bis(salysylaldehyde) benzidine, on the mild steel corrosion in 2.0 m hydrochloric acid have been investigated by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy techniques. these studies were carried out at different ...

Journal: :npj Materials degradation 2022

Abstract The large amount of corrosion inhibition efficiencies in literature, calls for a more efficient way to organize, access and compare this information. CORDATA open data management application ( https://datacor.shinyapps.io/cordata/ ) can help select appropriate inhibitors specific challenges.

2013
A. Pasupathy S. Nirmala M. Raja P. Sakthivel

The inhibitive effect of congo red was examined as corrosion inhibitor for the corrosion of zinc in 1N HCl by conventional weight loss and gasometric methods. Results obtained show that congo red exhibited high inhibition efficiencies. The inhibition efficiency was found to increase with increase in the inhibitor concentration. The adsorption of the inhibitor molecules on the zinc metal surface...

2013
A. Pasupathy S. Nirmala

The inhibitive effect of a few thiols were examined as corrosion inhibitors for the corrosion of zinc in 1N HCl and 1N H2SO4 by conventional weight loss and gasometric methods. Results obtained show that all the thiols exhibited high inhibition efficiencies. The inhibition efficiency was found to increase with increase in the inhibitor concentration. The adsorption of the inhibitors obeyed Temk...

Journal: :Corrosion Science 2021

• Simplistic correlations between molecular parameters and corrosion inhibition efficiencies critically evaluated. 24 heterocyclic organic compounds tested as inhibitors for Cu in 3 wt.% NaCl aqueous solution. None among usually considered correlates with efficiency. Pros cons of the efficiency (IE) metric discussed: IE suffers from nonlinearity. Inhibition power proposed a new evaluating perfo...

2015
Samet Azman Ahmad F. Khadem Grietje Zeeman Jules B. van Lier Caroline M. Plugge

Humic compounds are inhibitory to the anaerobic hydrolysis of cellulosic biomass. In this study, the impact of salt addition to mitigate the inhibitory effects of humic compounds was investigated. The experiment was conducted using batch tests to monitor the anaerobic hydrolysis of cellulose in the presence of humic acid. Sodium, potassium, calcium, magnesium and iron salts were tested separate...

Journal: :The journal of physical chemistry. B 2005
Yurko Duda Roberto Govea-Rueda Mónica Galicia Hiram I Beltran Luis S Zamudio-Rivera

The development of a methodology to predict the performance of a corrosion inhibitor (CI) using specific types of modeled and experimental surfaces and their subsequent estimation is presented. For previously reported imidazoline CIs, the theoretical partition coefficients and molecular volumes were calculated, providing a guide for molecular engineering of new imidazolines. The new CIs, N-[2-(...

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