A5007754292- Corrosion Behavior and Inhibition
- Concrete Corrosion and Durability
- Hydrogen embrittlement and corrosion behaviors in metals
- X-ray Diffraction in Crystallography
- Synthesis and Characterization of Heterocyclic Compounds
- Multicomponent Synthesis of Heterocycles
- Synthesis and biological activity
- Crystallization and Solubility Studies
- Crystal structures of chemical compounds
- Inorganic and Organometallic Chemistry
- Electrochemical Analysis and Applications
Visvesvaraya Technological University
2022-2024
University of Otago
2018
The current work targets to discover the potential of two pyrimidine derivatives, ethyl 4-[4-(dimethylamino)phenyl]-6-methyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxylate (ESP) and 4-[4-(dimethylamino)phenyl]-6-methyl-N-phenyl-2-sulfanylidene-1,2,3,4-tetrahydropyrimidine-5-carboxamide (DSP), for protection C1018 steel from acidic corrosion. Electrochemical tests like electrochemical impedance spectroscopy, linear polarization resistance, potentio-dynamic polarization, electron...
Iron and alloys of iron are commonly used in industries for various purposes. Despite their toughness, they prone to corrosion. A common way protect metallic components from corrosion is the use pyridine inhibitors. Hence, two new triazole derivatives, ethyl{[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}acetate (EPT) 2-({[5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl]sulfanyl}methyl)-1H-benzimidazole (PTB) have been synthesised formation compounds were confirmed by spectral data. The inhibition...
The present study aims to assess the potential of three pyrimidine derivatives—namely, ethyl 4-[4-(dimethylamino)phenyl]-2-imino-6-methyl-1,2,3,4-tetrahydropyrimidine-5-carboxylate (EDTP), 1-{4-[4-(dimethylamino)phenyl]-2-imino-6-methyl-1,2,3,4-tetrahydropyrimidin-5-yl}ethan-1-one (DITP), and 4-[4-(dimethylamino)phenyl]-2-imino-6-methyl-N-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxamide (DPTP)—in protecting mild steel against acidic corrosion. anti-corrosive effectiveness these synthesized...
A new triazole derivative, (E)-4-(4-(dimethylamino)benzylideneamino)-5-(pyridin-4-yl)-2H-1,2,4-triazole-3(4H)-thione (DPT), was synthesized and characterized using spectral data. The electrochemical experimental techniques were utilized to evaluate the inhibition efficiency (IE) of DPT for corrosion C1018 carbon steel. studies revealed that, is highly efficient with IE value 90% at 250 ppm. Further, addition resulted in decrease cathodic as well anodic current densities which indication...
Steel is the most important engineering and construction material in world. Corrosion problems have received a considerable amount of attention because their attack on materials. not only has economic implications, but also social these engage safety health people either working industries or living nearby towns. The use inhibitors one practical methods for protection against corrosion. Organic compounds are investigated as corrosion inhibitors, unfortunately expensive toxic to beings. Fatty...
The study investigated the corrosion-inhibitory properties of three synthetic triazole Mannich bases on C1018 carbon steel using various electrochemical techniques. inhibitors, namely 4-amino-2-[(4-methylpiperazin-1-yl)methyl]-5-(pyridin-4-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (4MPT), 4-amino-2-[(piperidin-1-yl)methyl]-5-(pyridin-4-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (PPT) and 4-amino-2-[(morpholin-4-yl)methyl]-5-(pyridin-4-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (MPT),...
In the title hydrate, C 19 H 26 ClN 3 O 4 ·H 2 O, imidazole ring is nearly perpendicular [dihedral angle = 89.5 (1)°] to dihydropyridine moiety. The propyl and one of ethyl groups are disordered over two resolved sets sites [occupancy factors 0.524 (8):0.476 (8) 0.640 (16):0.360 (16), respectively]. crystal, a three-dimensional network constructed by O—H...O, N—H...O N—H...N hydrogen bonds involving both main molecule water crystallization, as well C—H...π(ring) interactions.
In the title compound, C 12 H 15 N 2 O + ·C 3 − , phenoxy group is nearly perpendicular [80.73 (11)°] to dihydropyrimidinium ring. crystal, O—H...O, N—H...O and C—H...O hydrogen bonds form corrugated layers parallel ac plane.