6 research outputs found
Effect of akyl chain length, flow, and temperature on the corrosion inhibition of carbon steel in a simulated acidizing environment by an imidazoline-based inhibitor
An imidazoline, 2-heptadecyl-1-[2-(octadecanoylamino)ethyl]-2-
imidazoline (QSI) with -C17H35 as the tail chain length was synthesized,
characterized, and studied as corrosion inhibitor for low carbon
steel in 15% HCl solution under static and hydrodynamic conditions.
Influence of addition of KI, temperature, and chain length of pendant
hydrocarbon on inhibition efficiency (η) was also examined. It is found
that, QSI exhibits a mixed type behavior but fairly inhibited the
corrosion of low carbon steel in the studied medium. The maximum
concentration studied (400 mg/L) afforded η of <50%. Addition of KI to
QSI synergistically enhanced the corrosion inhibition performance of
QSI, upgrading the η to approximately 90%. Increase in the system
temperature increases the η of both QSI and QSI + KI. From the
variation of η with temperature and the calculated corrosion kinetic
parameters, chemical adsorption is proposed as the adsorption
mechanism of the additives. QSI performs better under hydrodynamic
condition than static condition. However, the corrosion resistance of
the metal decreases at rotation speed higher than 1000 rpm. Inhibition
efficiency of imidazoline decreases as the length of the hydrocarbon
pendant chain increases. Imidazoline compounds with -C13H27 and -
C15H31 as the length of the pendant group hydrocarbon perform better
than QSI with -C17H35
Acridine and Its Derivatives: Synthesis, Biological, and Anticorrosion Properties
The phenomenon of corrosion threatens metallic components, human safety, and the economy. Despite being eco-friendly and promising as a corrosion inhibitor, acridine has not been explored to its full potential. In this review, we have discussed multiple biological activities that acridines have been found to show in a bid to prove that they are environmentally benign and much less toxic than many inhibitors. Some synthetic routes to acridines and substituted acridines have also been discussed. Thereafter, a multitude of acridines and substituted acridines as corrosion inhibitors of different metals and alloys in various corrosive media have been highlighted. A short mechanistic insight into how acridine-based compounds function as corrosion inhibitors have also been included. We believe this review will generate an impression that there is still much to learn about previously reported acridines. In the wake of recent surges to find efficient and non-toxic corrosion inhibitors, acridines and their analogs could be an appropriate answer
Applying Optimal Sliding Mode Based Load-Frequency Control in Power Systems with Controllable Hydro Power Plants
Diorganotin(IV) and triorganotin(IV complexes of meso tetra (4 sulfonatophenyl) porphine: do they bind DNA?
It was observed that organometallic porphyrin systems, where the Sn(IV) residue is in side chains, coordinated via sulphonatophenyl groups of porphyrin, show interesting
and peculiar in vitro activity, in agreement with the anti-tumour activity of organotin complexes