Synthesis, characterization and electrochemical performance of a new imidazoline derivative as an environmentally friendly corrosion and scale inhibitor

Abstract

A new imidazoline derivative, {[(benzimidazol-2-ylmethyl)imino] bis(methylene)} bis(phosphonicacid), named as BMIBMBPA, was synthesized as an environmentally friendly corrosion and scale inhibitor. The performance of BMIBMBPA for carbon steel in cooling tower water was evaluated using weight loss, electrochemical measurements and a scale test and compared to that of sodium tungstate. The optimum concentration of BMIBMBPA was measured to be 40 mg/L and a much higher value, even at lower inhibition efficiencies, was determined for sodium tungstate. The electrochemical measurements demonstrated that BMIBMBPA acts as a mixed-type corrosion inhibitor. Surface analyses revealed adsorption of BMIBMBPA and scale inhibition through disruption in growth of precipitates.

Plasma Electrolytic Oxidation (PEO) Coating on γ-TiAl Alloy: Investigation of Bioactivity and Corrosion Behavior in Simulated Body Fluid

“…A corroding surface s ideally polarizable activity is influenced by its physical properties, such as surface roughness. Due to the possible deviations from pure resistance (n = 0) or pure capacitance (n = 1) behaviors, a constant phase element (CPE) is used to represent the equivalent electrical properties of the double layer, where n is a dimensionless exponent in the CPE impedance (Z) calculation formula given as Equation ( 2) [73].…”

Overview of the Synthesis of Salts of Organophosphonic Acids and Their Application to the Management of Oilfield Scale

“…synthesized a new imidazoline derivative, {[(benzimidazol-2-ylmethyl)­imino]­bis­(methylene)}­bis­(phosphonic acid) (BMIBMBP), as shown in Figure . This molecule gave calcium carbonate scale inhibition and carbon steel corrosion inhibition …”

“…This molecule gave calcium carbonate scale inhibition and carbon steel corrosion inhibition. 104 Phosphonating chloroalkyl amine hydrochloride has been carried out using the Moedritzer−Irani reaction to afford chloroalkyliminobis(methylene phosphonic acid)s. These molecules have been used as reactive intermediates in many industrial and pharmaceutical applications for introducing aminomethylenephosphonate groups into a chemical. 105 For example, Notte et al have reported some novel SIs by treatment of 3-chloropropyliminobis(methylene phosphonic acid) (CPIBMPA) with amino, hydroxyl, and thiol compounds in an aqueous medium having a pH of 8 or higher.…”

Evaluation of Scale and Corrosion Inhibition of Modified Polyaspartic Acid

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