Study of the mechanism action of sodium gluconate used for the protection of scale and corrosion in cooling water system

Touir, R.; Dkhireche, N.; Touhami, M. Ebn; Bakri, M. El; Rochdi, A.; Belakhmima, Rida Allah

doi:10.1016/j.jscs.2011.10.020

Cited by 34 publications

(11 citation statements)

References 19 publications

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“…The second was attributed to the influence of charge transfer resistance. The third loop was attributed to the Warburg impedance such as obtained in our previous work [56,57], indicating that the products prevented the O 2 diffusion to the brass substrate and/or suppressed the cathodic reduction in corrosion products. The relevant simulated impedance parameters are given in Table 11.…”

Section: Effect Of Corrosion Products On the Formulation 2 Performancementioning

confidence: 59%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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The effect of triazole (TR), 3-amino-1,2,4-triazole (ATA) and cetyltrimethylammonium bromide (CTAB) on the inhibition of brass corrosion in simulated cooling water system has been studied using electrochemical measurements, scanning electron microscopy (SEM) observations and energy dispersive X-ray (EDX) analysis. The potentiodynamic polarization study reveals that these inhibitors inhibit both cathodic and anodic reactions, indicating a mixed-type control of inhibition and their inhibition depend on the nitrogen number in their structure. It shows that the ATA is the best inhibitor. The interference between CTAB and TR derivatives against corrosion has been also studied. So, a large passive current plate is observed directly from the corrosion potential in the presence of formulation. In addition, the operational parameters effect on the performance of this formulation is also investigated. It shows that its inhibition efficiency increases with pH, immersion time and the presence of corrosion products and takes its performance by increasing in temperature. The SEM/EDX data confirm that the formulation is a corrosion and scale inhibitor.

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Section: Effect Of Corrosion Products On the Formulation 2 Performancementioning

confidence: 59%

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

et al. 2014

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“…Decrease of CPE dl may be caused by a reduction of local dielectric constant and/or by an increase in the thickness of the electrical double layer. ese results very much suggest that �ucona�ole acts by adsorption at the metal/solution interface [28,29]. e addition of �uconazole decreases the CPE dl values as a consequence to the replacement of water molecules by the inhibitor at the electrode surface.…”

Section: Eis Studies Nyquist and Bode Plots Of Mild Steel In 1 Mmentioning

confidence: 90%

Electrochemical Investigation on Adsorption of Fluconazole at Mild Steel/HCl Acid Interface as Corrosion Inhibitor

Edison

Sethuraman

2013

ISRN Electrochemistry

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The interfacial behavior of fluconazole on mild steel in 1 M HCl solution was studied by electrochemical methods, namely, polarization (Tafel Plot) and Electrochemical Impedance Spectroscopy (EIS). The surface morphology of mild steel in the presence and absence of fluconazole was studied by Atomic Force Microscopy (AFM). The results of the study showed that fluconazole reduced the corrosion rate in HCl acid solution by adsorbing on the surface of mild steel. Tafel results suggest that fluconazole behaves predominantly as an anodic inhibitor and shows greater inhibition efficiency (96%) at 0.30 mM. Thermodynamical parameters suggest that fluconazole is adsorbed on mild steel mainly by chemical mode. The EIS studies reveal the formation of a thin barrier film on mild steel surface. The AFM image of mild steel immersed in optimum concentration of fluconazole has confirmed the film formation on metal surface.

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“…Just as Figure shows, the inhibition efficiency of PASPTR against CaCO 3 scales at 50°C still exceeded 80% after 60 h of reaction time. This long‐time stable characteristic indicated that PASPTR was an excellent scale inhibitor compared to the other inhibitors, and this should make PASPTR be used more widely.…”

Section: Resultsmentioning

confidence: 93%

Poly(aspartic acid)–tryptophan grafted copolymer and its scale‐inhibition performance

Sun

Zhang

Yin

et al. 2015

J of Applied Polymer Sci

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Scale deposition, which severely damages oil exploration, is a difficulty encountered in oil fields. Scale inhibitors are widely used for controlling scales. Poly(aspartic acid) (PASP) is attracting more and more attention with increasing environmental concern and discharge limitations. However, PASP's poor inhibition in a high‐temperature environment markedly limits its wide use. Thus, poly(aspartic acid)–tryptophan grafted copolymer (PASPTR) was synthesized to improve the inhibition efficiency of PASP. The results show that the reactant of PASPTR has a great effect on its inhibition performance. PASPTR was found to inhibit the precipitation of CaSO4 close to 90% at concentrations as low as 0.4 mg/L at 50°C. The inhibition efficiency of PASPTR against CaCO3 was close to 100% with the concentration of 2 mg/L at 50°C. Scanning electron microscopy and X‐ray diffraction analyses, which showed the morphological and crystal structural changes of CaCO3 and CaSO4 precipitation, verified the excellent inhibition performance of PASPTR. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42739.

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Study of the mechanism action of sodium gluconate used for the protection of scale and corrosion in cooling water system

Cited by 34 publications

References 19 publications

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Corrosion Inhibition Study of Brass in Simulated Cooling Water by Triazole Derivatives, Cetyltrimethylammonium Bromide and Their Mixture

Electrochemical Investigation on Adsorption of Fluconazole at Mild Steel/HCl Acid Interface as Corrosion Inhibitor

Poly(aspartic acid)–tryptophan grafted copolymer and its scale‐inhibition performance

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