A combination of electrochemical measurement and interface analysis have been applied to characterise the interaction OMID, an exemplar imidazoline-based corrosion inhibitor, with carbon steel in 1 M hydrochloric acid. Corrosion inhibition efficiency data indicate that excellent performance is achieved well below critical micelle concentration. High resolution X-ray photoelectron spectra demons...

This paper investigates the inhibition performance of a typical imidazoline based inhibitor under multiphase flow. Electrochemical impedance spectroscopy (EIS) measurements were carried out in a 101.6 mm I. D.,15 m long acrylic flow loop using ASTM substitute saltwater and carbon dioxide gas. This flow loop system can generate slug flow, fill pipe flow and other multiphase flow patterns. Effect...

The extract of pandan leaf used as corrosion inhibitor St37 steel in NaCl 3% solution. To determine the effect concentration and immersion temperature on is done with variation there were 0, 1,8, 1,2, 1,4% 27°C 40°C. Corrosion rate testing by weight loss method. Increased along increasing sample loss. Inhbitor most efficient at 1.2% soaking Samples also characterization XRD SEM-EDS. results sho...

Several works have been done and more are on the pipeline on the influence of organic compounds containing polar functions on the corrosion inhibition of metals in various aqueous media. Corrosion inhibition by such compounds is generally attributed to their adsorption on the metal/solution interface. The specific action of an inhibitor depends on the nature of its interaction with metal surfac...

the effect of vanillin on the corrosion behavior of aa6061 al alloy in 3.5% nacl solution wasinvestigated using potentiodynamic polarization and electrochemical noise (en) techniques. vanillinoffers interesting possibilities for corrosion inhibition due to its nontoxicity and high solubility inaqueous media. the best inhibition effect at 200 ppm vanillin was a marked characteristic of theinhibi...

Abstract Detrimental corrosion is an ever-concerning challenge for metals and alloys. One possible remedy to apply organic inhibitors. Despite progress in molecular assembly inhibitor research, better mechanistic insight on the level needed. Here we report behavior of well-defined artificial interfaces created by micro-contact printing thiol-inhibitor molecules subsequent backfilling. The obtai...

The chemical content of water pH, mineralization, alkalinity, hardness, calcium and magnesium compounds, carbon dioxide free provide guidance about buffering capacity of water. Therefore, if the mineralization and pH is low, the water is aggressive towards the materials used in manufacturing pipes concrete, steel, HDPE, PVC, PAX. If the mineralization is high, the pH is high, too and the water ...

It is shown that many heterocyclic organic compounds, e.g., various azoles, are capable of adsorption on metals with formation of strong bonds with the surface. The approach based on the linear free energy relationship (LFER) principle offers a description of the efficiency of corrosion inhibition by these compounds and provides an understanding of the nature of chemical bonds formed by an orga...