Corrosion and Inhibition Effects of Organophosphonic Solution on Mild Steel in Hydrochloric Acid Medium | Chapter 6 | Chemical and Materials Sciences: Developments and Innovations Vol. 5

The present study has been conducted on the corrosion mechanisms of mild steel and the impact of nitrilo trimethylene phosphonic (NTMP) acid as a corrosion inhibitor in a 10% HCl acidic environment. Various polymers and phosphonates have been integrated into inhibitor formulations for use in aqueous and acidic environments. The weight loss method and electrochemical techniques, including potentiodynamic and galvanostatic polarization measurements, were employed. Corrosion, though typically a long-term process, initially occurs at a faster rate, which gradually decreases over time. The above methods of assessing corrosion rates provide an average value over an extended period. Due to the versatility and low detection limits of the voltammetric methods, the researchers have developed a new voltammetric approach to determine corrosion rates immediately after some short periods like 5 min. The study presents the result of mild steel corrosion in a 10% HCl solution, with and without the NTMP inhibitor, at short intervals. It was found that the corrosion inhibition efficiency of NTMP is 93% after 24 hours. NTMP has been used as a corrosion inhibitor for the corrosion of Mild steel in acidic media found very good results. Its inhibition efficiency is 93% after 24h, thus it may be very useful for industrial applications.

 

Author(s) Details

Jyotsna Mishra
Department of Chemistry, Faculty of Science, SCOPE Global Skills University, Bhopal, MP, India.

 

Shakuntala Patel
Department of Chemistry, Shree Ram College of Engineering, Jabalpur, MP, India.

 

 

Please see the book here:- https://doi.org/10.9734/bpi/cmsdi/v5/1460

The Application of Palm Kernel Oil to Producing Polyurethane | Chapter 8 | Current Innovations in Chemical and Materials Sciences Vol. 1

 The aim of this research search out create, describe, and inspect the electro behavior of polyurethane taking advantage of screen-printed electrodes and cyclic and characteristic pulse voltammetry (CV/DPV). Conducting polymers (CPs) are polymers that can release a current. The generated power of CPs was first observed in polyacetylene, nevertheless be necessary its imbalance, the invention of various CPs have happened studied and stated such as polyaniline (PANI), poly(o-toluidine) (PoT), polythiophene (PTH), polyfluorene (PF), and polyurethane (PU). Incorporating certain supplements changes the mechanical traits of polyurethane (PU), a special polymer, and its treat options. In this work, a freestanding biography-based polyurethane film accompanying a screen-printed electrode (SPE) was created utilizing acetone as a fit and the solution casting approach. It was of highest quality-pot response involving the two main reactants, 4,4-methylene diisocyanate and polyol from palm seed oil. On the SPE surface, the PU adheres immovably. The synthesized biography-based polyurethane was characterized utilizing thermogravimetry analysis, characteristic scanning calorimetry, Fourier-mold infrared spectroscopy (FTIR), surface area reasoning by field emission flipping through electron microscope, and cyclic voltammetry. To examine the electro-catalytic capabilities of SPE-polyurethane towards the corrosion of PU, cyclic voltammetry was used. Surprisingly, SPE-PU, when distinguished to SPE, showed better photoelectric peak current utilizing the differential rhythm voltammetry technique. Additionally, the lack of the signal at 2241 cm-1 unpaid to the sp-hydridized carbons atoms of CC bonds following polymerization was examined using FTIR to illustrate the synthesis of urethane linkages (-NHC(O) spine). The polyurethane's glass transition hotness was determined expected 78.1°C.

Author(s) Details:

Muhammad Abdurrahman Munir,
Department of Pharmacy, Faculty of Health Science, Alma Ata University, Daerah Istimewa Yogyakarta, 55183, Indonesia.

Please see the link here: https://stm.bookpi.org/CICMS-V1/article/view/11911

An Advanced Study on Electrochemical Behavior of Chalcone at a Glassy Carbon Electrode and Its Analytical Applications | Chapter 8 | Current Perspectives on Chemical Sciences Vol. 7

Using cyclic, differential pulse and square wave voltammetric techniques for the determination of trace-level chalcone at a glassy carbon electrode, a simple and rapid method was developed. Two anodic peaks at about 0.514 V and 1.478 V and a cathodic peak at about −0.689 V could be generated by Chalcone. The differential pulse voltammerty has a strong linear response in the range of 0.2 - 10 μM with a detection limit of 0.18 μM compared to square wave voltammetry. The suggested approach has been successfully used as actual samples for its quantitative determination in spiked human plasma and urine. The suggested method provided the benefits of precision and time saving as well as reagent and apparatus simplicity. Furthermore, the findings obtained in the chalcone analysis of spiked human plasma and urine samples showed the applicability of the procedure for the analysis of actual samples.

Author (s) Details

Dr. Keerti M. Naik
P. G. Department of Studies in Chemistry, Karnatak University, Dharwad, India.

Dr. Sharanappa T. Nandibewoor
P. G. Department of Studies in Chemistry, Karnatak University, Dharwad, India.

View Book :- https://stm.bookpi.org/CPCS-V7/issue/view/5