CORROSION INHIBITION OF API5L X60 STEEL IN SULFURIC ACID USING GUM ARABIC

被引：0
|
作者：
Sobhi, Nour-El-Houda [1 ]
Boukhouiete, Amel [2 ]
机构：
[1] Univ Mohamed Cher Messaadia, Lab Sci & Tech eau & Environm, Souk Ahras, Algeria
[2] Univ Badji Mokhtar, Lab Met Phys & Propriete Mat, Annaba, Algeria
来源：
REVUE ROUMAINE DE CHIMIE | 2023年 / 68卷 / 1-2期
关键词：
MILD-STEEL; HCL; EXTRACT; ALUMINUM;
D O I：
10.33224/rrch.2023.68.1-2.02
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The aim of this research is the evaluation of inhibitory efficiency of Gum Arabic (GA) against the corrosion of API5L X60 pipeline steel in H2SO4 (0.5M) media, using mass loss measurement and electrochemical methods. The results show that inhibition efficiency increases with inhibitor concentration to attain 83% at 4 g/L of GA. Polarization curves reveal that GA acts as a mixed-type inhibitor in sulfuric acid. The adsorption of GA on pipeline API 5L X60 steel surface obeyed the Langmuir adsorption isotherm. Gibbs free energy of adsorption indicated that the adsorption process is spontaneous and the molecules adsorbed on the metal surface by the process of physical adsorption.
引用
收藏
页码：17 / 25
页数：9
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