scholarly journals Two Diamine Schiff Base as a Corrosion Inhibitors for Carbon Steel in Sulfuric Acid Solution: Electrochemical Assessment and Theoretical Calculation

2021 ◽  
pp. ArticleID:210559
Author(s):  
Zesheng Chen ◽  
Keyword(s):  
Schiff Base ◽  
Sulfuric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Theoretical Calculation ◽  
Sulfuric Acid Solution ◽  
Corrosion Inhibitors

Corrosion Inhibition of 2-Mercaptobenzothiazole for Carbon Steel in Sulfuric Acid Solution

2012 ◽  
Vol 557-559 ◽  
pp. 92-95 ◽  
Author(s):  
Xiao Feng Liang ◽  
Xue Yang
Keyword(s):  
Sulfuric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Mixed Type ◽  
Sulfuric Acid Concentration ◽  
Weight Loss Measurement ◽  
Inhibition Effect ◽  
Effects Of Temperature ◽  
Mixed Type Inhibitor

The inhibition effect of 2-Mercaptobenzothiazole (2-MB) against the corrosion of carbon steel in sulfuric acid solution was studied by weight loss measurement and electrochemical measurements(potentiodynamic polarization techniques). The results show that 2-MB acts as a good corrosion inhibitor in sulfuric acid solution. Adsorption of 2-MB is found to obey Langmuir isotherm. Polarization curves indicate 2-MB is a mixed-type inhibitor. The effects of temperature and sulfuric acid concentration were also studied.

scholarly journals Inhibitory Properties of Neomycin Thin Film Formed on Carbon Steel in Sulfuric Acid Solution. Electrochemical and AFM Investigation

2017 ◽  
Author(s):  
Adriana Samide ◽  
Gabriela Eugenia Iacobescu ◽  
Bogdan Tutunaru ◽  
Roxana Grecu ◽  
Cristian Tigae ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Sulfuric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Steel Surface ◽  
Protective Layer ◽  
Force Microscopy ◽  
Atomic Force ◽  
Neomycin Sulfate

Our study aims to implement a strategy to reduce the carbon steel corrosion rate in sulfuric acid solution, using an expired drug with adsorption affinity on the metal surface. To investigate the corrosion protection efficiency of an environmental friendly inhibitor, namely neomycin sulfate (NMS), the electrochemical measurements were applied on carbon steel immersed in 1.0 M H2SO4 solution with and without NMS. The protective layer formed on the steel surface was studied by atomic force microscopy (AFM). The potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) showed that the presence of the neomycin sulfate in acid solution leads to the decrease in corrosion current density (icorr) and the increase of polarization resistance (Rp). The mixed mechanism between physical and chemical adsorption of NMS molecules on the steel surface was proposed according to the Langmuir adsorption isotherm. The Atomic Force Microscopy (AFM) indicated that the NMS molecules contributed to a protective layer formation by their adsorption on the steel surface. The AFM parameters such as: root-mean-square roughness (Rq); average roughness (Ra) and maximum peak to valley height (Rp-v) revealed that in the presence of NMS a smoother surface of carbon steel was obtained, compared to the steel surface corroded in sulfuric acid blank solution.

Effect of organic anions on ionic liquids as corrosion inhibitors of steel in sulfuric acid solution

2019 ◽  
Vol 279 ◽  
pp. 267-278 ◽  
Author(s):  
Natalya V. Likhanova ◽  
P. Arellanes-Lozada ◽  
O. Olivares-Xometl ◽  
H. Hernández-Cocoletzi ◽  
Irina V. Lijanova ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Sulfuric Acid ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Corrosion Inhibitors ◽  
Organic Anions

Laju Korosi Pada Baja Karbon Sedang Akibat Proses Pencelupan Pada Larutan Asam Sulfat (H2SO4) dan Asam Klorida (HCl) dengan Waktu Bervariasi

2020 ◽  
Vol 2 (1) ◽  
pp. 13-21
Author(s):  
Miduk Tampubolon ◽  
Roy Ganda Gultom ◽  
Lestina Siagian ◽  
Partahi Lumbangaol ◽  
Charles Manurung
Keyword(s):  
Sulfuric Acid ◽  
Carbon Steel ◽  
Corrosion Rate ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Long Time ◽  
Weight Loss Method ◽  
Loss Method

An experiment has been conducted to determine corrosion rate of medium carbon stell with sulfuric acid solution, Aquades 90,2% + H2SO4 9,8% and hydrochloric acid solution, Aquades 96,8% + HCl 3,2%. By using weight loss method, if medium carbon steel dipped into sulfuric acid solution then the corrosion rate is faster than it dipped into hydrochloric solution. If medium carbon steel dipped in a long time than the corrosion rate slowing down.

scholarly journals Inhibitory Properties of Neomycin Thin Film Formed on Carbon Steel in Sulfuric Acid Solution: Electrochemical and AFM Investigation

Coatings ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. 181 ◽  
Author(s):  
Adriana Samide ◽  
Gabriela Iacobescu ◽  
Bogdan Tutunaru ◽  
Roxana Grecu ◽  
Cristian Tigae ◽  
...  
Keyword(s):  
Thin Film ◽  
Sulfuric Acid ◽  
Carbon Steel ◽  
Acid Solution ◽  
Sulfuric Acid Solution
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