The Inhibition of Mild Steel Corrosion in Sulfuric Acid by New Dapsone Derivatives
Journal Title: JOURNAL OF ADVANCES IN CHEMISTRY - Year 2014, Vol 10, Issue 3
Abstract
Dapsone derivatives Viz., 4, 4’-sulfonylbis(N-((1H-pyrrol-2-yl)methylene)aniline) (SBPMA) and 2-dimethylamino-5-[(4-{4-[(4-dimethylamino-benzylidene)-amino]-benzenesulfonyl}-phenylimino)-methyl]-benzene (DBBPB), a new class of corrosion inhibitors have been synthesized and their corrosion inhibition efficiency on mild steel in 0.5 M H2SO4 was investigated by mass loss, Tafel polarization and AC impedance measurements. Potentiodynamic polarization studies showed that, these compounds behave as mixed type of corrosion inhibitors. The adsorption process was found to obey Langmuir isotherm model. Electrochemical impedance spectroscopy (EIS) studies revealed that polarization resistance (RP) increases and double layer capacitance (Cdl) decreases as the concentration of the inhibitors increases. Various thermodynamic parameters for the adsorption of inhibitors on mild steel were computed and discussed. FTIR, EDX and SEM analyses were performed to study the film persistency of the inhibitors.
Authors and Affiliations
M. P. Chakravarthy, Dr. K. N. Mohana, C. B. Pradeep Kumar
Keywords
Related Articles
- EP ID EP652804
- DOI 10.24297/jac.v10i3.2289
- Views 129
- Downloads 0
Sol-Gel Synthesis, Crystal Structure, Electronic and Magnetic Properties of AlxTi1-xBiO3 (0.0 ≤x≤ 0.33) Oxides
Synthesis of AlxTi1-xBiO3 (0.0 ≤x≤ 0.33) (S1-S4: x = 0.0, 0.11, 0.22, 0.33) oxides is performed by sol-gel method via nitrate-citrate route. Analysis of the powder X-ray diffraction (XRD) patterns show tetragonal uni...
A Fuzzy Logic based Privacy Preservation Clustering method for achieving K- Anonymity using EMD in dLink Model
Privacy preservation is the data mining technique which is to be applied on the databases without violating the privacy of individuals. The sensitive attribute can be selected from the numerical data and it can be modifi...
ANALYSIS OF MULTIVARIABLE CONTROLLER FOR FLUID CATALYTIC CRACKING UNIT IN A PETROLEUM REFINERY
The projected paper has been scrutinized and revised the circulated experimental results related to reactor-regenerator structure of fluid catalytic cracking unit (FCCU). It correspondingly focuses the limitations of exi...
STRUCTURAL BEHAVIOR OF HYBRID FIBER REINFORCED CONCRETE BEAM USING STEEL AND POLYVINYL ALCOHOL FIBER
      Fiber reinforcement is commonly used to provide toughness and ductility to cementitious matrix which is brittle in nature. Reinforcement of concrete with a single type of fiber may improve the desired pr...
TOTAL PHENOLIC CONTENTS, ANTIOXIDANT, ANTICANCER AND ANTIDIABETIC PROPERTIES OF Myrmecodia tuberosa (RUBIACEAE)
Myrmecodia tuberosa, locally known as “Sarang Semutâ€, belongs to the Rubiaceae family. The aim of the study is to investigate the total phenolic contents and bioactivity of the crude extract of M. tuberosa. The tuber...