نتایج جستجو برای: corrosion inhibitor

تعداد نتایج: 241084  

2011
R. RAJALAKSHMI

Corrosion inhibitors play a major role in the cost effective control of corrosion. Because of the toxic nature and high cost of chemicals plant extracts are currently used as inhibitors. In the current study, efforts are taken to study the role of seed extracts of Phaseolus aureus on corrosion of mild steel in 1M HCl by weight loss method and potentiodynamic polarization technique. The Potentio...

2014
A. Pasupathy S. Nirmala G. Abirami A. Satish R. Paul Milton

Chrysoidine dye was examined as an inhibitor for mild steel in 1N HCl using weight loss, gasometric and thermometric methods. Parameters such as inhibition efficiency and corrosion rates were evaluated. The inhibition efficiency was found to increase with increase in the inhibitor concentration. To study the adsorption of the inhibitor on the mild steel surface, adsorption isotherm was plotted.

Journal: :Journal Of Research and Education Chemistry (JREC) 2022

Corrosion is one the problems that occur in production process oil and gas industries can reduce material equipment such as tubing flowline. corrosion influenced by humidity temperature. be control using organic inhibitors because they are environmentally friendly. This research a laboratory examines effect of red ginger on reducing flow rate. Red used it contains phenol antioxidants which inhi...

This paper studies the corrosion inhibition of Al-Mg alloy system in 0.5 mol/dm3 NaCl solution in the presence of pyrazole derivative using potentiodynamic polarization and linear polarization method. The inhibition efficiency as a function of concentration and temperature was investigated. From the polarization curves, it can be concluded that the pyrazole derivative be...

Ch. Dehghanian and A. Shabzendeh Azari,

Effectiveness of furfural as an organic inhibitor in 5 percent hydrochloric acid which is used in acid pickling of steel was evaluated. Lungmuir, Frumkin and Flory-Huggins isotherms [1, 2] were used to determine the parameters of effective adsorption, free energy and entropy of adsorption. Furfural indicated an inhibition less than 17 percent in concentrations of 0.001 mole per liter for a dura...

The corrosion inhibition potential and efficacy of 2-hydropyrimidine-2-thione derivative on mildsteel in 0.5 M sulfuric acid solution was investigated using electrochemical polarization and FTIRspectroscopic techniques. In addition, docking studies were carried out as theoretical investigationof adsorption inhibitor on iron surface. The results of polarization studies indicate...

M.R. Gholamhosseinzadeh R. Farrahi-Moghaddam

In this paper, the effect of penicillin G benzathine (PGB) drug as a green corrosion inhibitor on mild steel in 1.0 M hydrochloric acid solution has been investigated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The inhibition efficiency (IE) was found to increase with increasing inhibitor concentration. Potentiodynamic polarization measure...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان همدان - دانشکده علوم پایه 1390

بیان موضوع: بررسی اثر بازدارندگی مواد طبیعی همچون زردچوبه، روناس، دارچین، حنا برروی خوردگی مس و فولاد هدف: پدیده خوردگی یکی از قدیمی ترین معضلات جامعه بشری است. یکی از برنامه های پر اهمیت تمدن و صنعت روش های حفاظت از خوردگی است. مطالعات زیادی روی اثر بازدارنده روی خوردگی فلزات وجود دارد. یکی از روش های سودمند برای پیشگیری و کنترل خوردگی فلزات بکار بردن بازدارنده های طبیعی است. دراین تحقیق بر...

2009
T. Y. Soror

This paper describes an experimental study on calcium sulphate scaling and prevention by newly treated polyacrylamide in a laboratory model. In order to study the inhibiting capacity of the chemical used, experiments were performed in solutions involving treatment of synthetic sea water with different concentrations of the polymer. Polyacrylamide gave significantly lower precipitation rate comp...

2013
C. A. Loto O. O. Joseph R. T. Loto A.P.I. Popoola

The inhibition effect of Vernonia amygdalina (bitter leaf) extract on the corrosion behaviour of embedded mild steel rebar in concrete has been investigated by electrochemical potential measurement, pH and gravimetric (weight loss) methods. The results were further analysed using the two-factor ANOVA test. The experiments were performed using bitter leaf extract as a green inhibitor in 3.5% sod...

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