Corrosion Inhibition of Indigofera Tinctoria Leaf Extract on Mild Steel in 1M HCL Solution | Chapter 9 | Chemistry and Biochemistry: Research Progress Vol. 9

 

In the present work, the dissolution prevention of mild steel induced by Indigofera tinctoria Leaves (ITL) extract was analysed using different techniques such as weight loss, electrochemical impedance spectroscopy and potentiodynamic polarisation in 1M HCl solution at various contact periods and temperatures (303-333K). The result exhibits that Indigofera tinctoria Leaves acts as a mild steel inhibitor that performs well in 1M HCl solution. Inhibition efficiency of mild steel in 1M HCl increases as more inhibitor is added. The Highest percentage of inhibition efficiency was found to be 54.3% a 500 ppm concentration at a temperature of 303 K. Thermodynamic parameters Ea, Qads, Gads, H, and S suggest that the adsorption of Indigofera tinctoria leaves extract is exothermic, spontaneous, and a chemisorption process. The Langmuir adsorption isotherm governs the adsorption of Indigofera tinctoria leaves on a mild steel surface. Also, the electrochemical study exhibits that it acts as a cathodic inhibitor in a 1M HCl medium. Thin film formation on the surface of metal may also be confirmed by UV, FT-IR, and SEM studies.

 

 

Author(s) Details

M. Prema
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

S. Vidhya
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

A. Leema Rose
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

F. Janeeta Priya
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

J. Morris Princey
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

A. Arputharaj
St.Joseph's College Autonomous, Tiruchirappalli, India.

 

P. Aparna
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

T. R. Amsica
PG and Research Department of Chemistry, Holy Cross College (Affiliated to Bharathidasan University), Tiruchirappalli–620002, Tamil Nadu, India.

 

Please see the book here :- https://doi.org/10.9734/bpi/cbrp/v9/7235

A Study of Newly Synthesized Ligands as Corrosion Inhibitors on Industrial Metals Mild Steel and Aluminium in Trichloroacetic Acid (TCAA) | Chapter 9 | Progress in Chemical Science Research Vol. 6

 Mass loss and Scanning Electron Microscope methods (SEM) have been used to study the corrosion inhibition efficiency of synthesized ligands i.e. N-Benzylidene aniline (CI1) and N-Benzylidene 4-methylaniline (CI2) on industrial metals viz. mild steel and aluminium in Trichloroacetic acid (TCAA). Generally study have been carried out in inorganic acids HCl and H2SO4. This is comparatively a new study taking organic acid TCAA. According to research, both aluminium and mild steel are susceptible to corrosion in organic acids like TCAA. In the same conditions, the TCAA more vigorously corrodes aluminium than mild steel out of these two metals. Study shows that synthesized inhibitors CI1 and CI2 are almost same effective for mild steel and aluminium.SEM study reveals that the surfaces of both metal are not affected in TCAA in presence of inhibitor which shows that inhibitors protect the surface structures of both metals effectively.

Author(s) Details:

Lalita Saini,
Synthesis and Surface Science Laboratory, Department of Chemistry, Govt. College Ajmer, Rajasthan, India.

R. K. Upadhyay,
Synthesis and Surface Science Laboratory, Department of Chemistry, Govt. College Ajmer, Rajasthan, India.

Please see the link here: https://stm.bookpi.org/PCSR-V6/article/view/9606

Natural Green Corrosion Inhibitors for Mild Steel- A Review | Chapter 4 | Recent Developments in Engineering Research Vol.1

Corrosion of mild steel in construction field poses safety, financial and environmental threat. It can be handled effectively using inhibitors. Despite having an advantage, the inorganic and synthetically produced inhibitors impart huge cost and toxicity. As a result of extensive research towards green technology quite significant numbers of green corrosion inhibitors from plants shows promising results at low cost and eco-friendly option. The constituents in plants acts in a similar way like its chemical counterpart and provide best inhibition efficiency. This paper provides an overview of types of corrosion, corrosion process, and mainly recent work done on the application of natural plant extracts as corrosion inhibitors for mild steel.

Author (s) Details

A. Annadurai
Department of Civil Engineering, Sathyabama Institute of Science and Technology (Deemed to be University), Jeppiaar Nagar, Chennai 600 119, Tamil Nadu, India.

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/205