Relevant bibliographies by topics / Amines as corrosion inhibitors

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Academic literature on the topic 'Amines as corrosion inhibitors'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Amines as corrosion inhibitors"

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Reyes-Dorantes, E., J. Zuñiga-Díaz, A. Quinto-Hernandez, J. Porcayo-Calderon, J. G. Gonzalez-Rodriguez, and L. Martinez-Gomez. "Fatty Amides from Crude Rice Bran Oil as Green Corrosion Inhibitors." Journal of Chemistry 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/2871034.

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Due to its high oil content, this research proposes the use of an agroindustrial byproduct (rice bran) as a sustainable option for the synthesis of corrosion inhibitors. From the crude rice bran oil, the synthesis of fatty amide-type corrosion inhibitors was carried out. The corrosion inhibitory capacity of the fatty amides was evaluated on an API X-70 steel using electrochemical techniques such as real-time corrosion monitoring and potentiodynamic polarization curves. As a corrosive medium, a CO2-saturated solution (3.5% NaCl) was used at three temperatures (30, 50, and 70°C) and different concentrations of inhibitor (0, 5, 10, 25, 50, and 100 ppm). The results demonstrate that the sustainable use of agroindustrial byproducts is a good alternative to the synthesis of environmentally friendly inhibitors with high corrosion inhibition efficiencies.
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Kassenova, Zh. "Residual chemical analysis of amines used as corrosion inhibitors." Bulletin of the Innovative University of Eurasia 80, no. 4 (December 25, 2020): 109–14. http://dx.doi.org/10.37788/2020-4/109-114.

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Main problem: Presence of acidic chemicals such as carbon dioxide and hydrogen sulphide, composition of production fluids triggers corrosion. Corrosion in oil and gas industry leads to deterioration of equipment since most of equipment is made of metal alloys. Application of inhibitors is one of the corrosion mitigation methods that needs to be controlled because it is important to identify optimal concentration of the chemicals in production fluids.Residual chemical analysis plays an important rolein identifying the appropriate dosage of corrosion inhibitors and its correction. It is imperative to find the most optimal concentration of amines due to the fact that both overdose and underdose could lead to equipment deterioration. The chemical analysis is hindered by complexity of mixtures that are applied in petroleum industry. Purpose: The main purpose of this article is to find out the most effective method of residual chemical analysis for inhibitors used against sweet and sour corrosion by studying and analyzing corresponding literature review. The analysis should be carried out with robust, sensitive, and accurate instrumentation. Methods :Theoretical study of composition and mechanism of amines used in oil and gas industry as corrosion inhibitors and selection of appropriate instrumental analytical techniques for the residual analysis. Results and their importance: After careful studying and consideration of modern instrumental analytical techniques the most optimal and efficient method in terms of robustness, time saving and cost was selected. Ion chromatography is an adequate method to carry out residual chemical analysis for amines that are used as inhibitors in oil and gas industry to prevent sweet and sour corrosion.
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Mainier, Fernando Benedicto, and Raphaela de Melo Baêsso e Silva. "Evaluation of corrosion inhibitors in acid medium." Anti-Corrosion Methods and Materials 62, no. 4 (June 1, 2015): 241–45. http://dx.doi.org/10.1108/acmm-12-2013-1329.

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Purpose – The purpose of this paper is to evaluate the corrosion inhibitor performance in acid medium through the determination of Fe2+ ions present based on reaction kinetics of steel with the acid. The use of corrosion inhibitors has been an excellent technique for protecting carbon steel pipes acidizing operations in oil wells. The inhibitor forms a chemical barrier on the metal surface that prevents or reduces attack by the acidic media. Design/methodology/approach – The experimental study provides a methodology to evaluate the performance of corrosion inhibitors in an acid medium, preferentially of concentrated hydrochloric acid. The process consists essentially of total immersion coupons of carbon steel, with continuous stirring, controlled temperature and quantitative determinations of iron ions from the dissolution of steel. The additions of commercial corrosion inhibitor base of ethoxylated amines of high molecular weight in an acid medium showed excellent performance at a temperature ranging from 25 to 45°C. Findings – This paper presents the mechanisms of protection, performance graphs and calculations of the activation energies of the addition of corrosion inhibitors in an acidic medium. Originality/value – The originality of this essay is to evaluate and correlate the performance of corrosion inhibitors with the activation energy in experimental conditions.
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Mousaa, Issa, and Hamdi Radi. "New corrosion inhibitors based on epoxidized natural rubber for coating protection of metals under UV irradiation." Anti-Corrosion Methods and Materials 64, no. 4 (June 5, 2017): 389–96. http://dx.doi.org/10.1108/acmm-01-2016-1628.

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Purpose In the present work, under severe conditions of an inert atmosphere and high temperature, epoxidized natural rubber (ENR) with 25 per cent epoxidation level reacts with different aliphatic amine compounds such as ethyl amine (EA), propyl amine (PA) and butyl amine (BA) to prepare ENR/EA, ENR/PA, ENR/BA compounds as, respectively. The produced compounds were characterized by Fourier transform infrared spectroscopy and oxirane oxygen content determination. Different concentrations of the produced compounds were added to epoxy and urethane acrylate coating formulations to evaluate them as corrosion inhibitors for mild steel under UV irradiation. Corrosion resistance tests and weight loss measurements of the coated steel panels were made. It was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion, and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors which give the best inhibition efficiency for corrosion are 0.4-0.6 phr. Design/methodology/approach Corrosion scratch tests were carried out according to ASTM D 1,654-92 (2000). The weight loss of coated steel was measured according to ASTM D 2,688-94 (1999). The measurement of film hardness was carried out with a Wolff–Wilborn pencil hardness tester according to ASTM D 3,363 (2000). Findings It was found that coating formulations containing the prepared ENR/EA compound could protect metal surface from corrosion and corrosion inhibitors efficiency of the prepared compounds were arranged as follows: ENR/EA > ENR/PA > ENR/BA. The optimum concentrations for all inhibitors are 0.4-0.6 g/100g coating. Originality/value A highly efficient and economically corrosion inhibitors for mild steel were prepared from ENR and series of aliphatic amines.
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Cheng, Yuan Peng, Zi Li Li, Hai Sheng Bi, and Yi Xuan Song. "Research on the CO2 Corrosion Inhibitor Technology in Oil and Gas Fields." Advanced Materials Research 734-737 (August 2013): 1240–45. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.1240.

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CO2 corrosion is the main safety problem of production process in gathering, delivering and treating of oil and gas. Injecting inhibitors to suppress CO2 corrosion in oil and gas fields is an easy-to-use, low investment, quick solution method. The goal of this study is to summarize the already established research results of controlling CO2 corrosion, inhibition mechanism of CO2 corrosion inhibitors is reviewed, application status of inhibitor technology in CO2 corrosive environment is discussed. Research status of amides, imidazoline derivatives, quatemary ammonium salts and schiff bases overseas and domestic is highlighted. Finally, an outlook on the development trend of CO2 corrosion inhibitors is presented.
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Fiedlerová, Michaela, Luboš Taranza, Rostislav Drochytka, and Michael Tupý. "Determining the Presence of the Corrosion Inhibitors Based on Amines in Hardened Mortars." Advanced Materials Research 1122 (August 2015): 93–97. http://dx.doi.org/10.4028/www.scientific.net/amr.1122.93.

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The presence of corrosion inhibitors in the composition of building materials is an innovative feature that significantly contributes to the prolongation of the life cycle of reinforced concrete and the rehabilitation procedure itself. Limited control and the high cost of modifying additives result in failure of prescribed dosage and thus limited function. The article describes the methodology for determining the presence of corrosion inhibitors based on amines through a colored reaction of amines with ninhydrin agent.
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Rostron, Paul, and Sonia Kasshanna. "Novel Synthesis of Vegetable Oil Derived Corrosion Inhibitors." International Journal of Corrosion 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/851698.

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Two different naturally occurring vegetable oils, Cress seed oil, and Linseed oil were chemically modified via novel one pot synthesis to produce fatty acid derived amides. These were characterized by their ability to prevent corrosion of carbon steel in vigorously stirred, aerated seawater, one of the most corrosive naturally occurring environments. Corrosion inhibitor efficiencies of up to 99.6% or a corrosion rate reduction factor of 250 in this medium is reported. The one pot synthetic strategy means that the corrosion inhibitors can be made at very low cost.
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Simicic, Milos, and Dragan Govedarica. "Internal corrosion of carbon steel piping in hot aquifers service." Chemical Industry 65, no. 3 (2011): 303–11. http://dx.doi.org/10.2298/hemind110209023s.

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Internal corrosion of carbon steel pipelines is a major problem encountered in water service. In terms of prediction of the remaining lifetime for water pipelines based on the corrosion allowance, the three main approaches are corrosion modelling, corrosion inhibitor availability, and corrosion monitoring. In this study we used two theoretical corrosion models, CASSANDRA and NORSOK M-506 of quite different origin in order to predict uniform corrosivity of hot aquifers in eight different pipelines. Because of the varying calculation criteria for the different models, these can give very different corrosion rate predictions for the same data input. This is especially true under conditions where the formation of protective films may occur, such as at elevated temperatures. The evaluation of models was conducted by comparison using weight-loss coupons and three corrosion inhibitors were obtained from commercial suppliers. The tests were performed during the 60-day period. Even though inhibitors? efficiencies of 98% had been achieved in laboratory testing, inhibitors? availabilities of 85% have been used due to logistics problems and other issues. The results, given in mmpy, i.e. millimeter per year, are very consistent with NORSOK M-506 prediction. This is presumably because the model considers the effect of the formation of a passive iron carbonate film at temperatures above 80 ?C and significant reduction in corrosion rate. Corrosion inhibitor A showed a better performance than inhibitors B and C in all cases but the target corrosion rates of less than 0.1 mmpy were achieved for all inhibitors. The chemical type of corrosion inhibitor A is based on quaternary amines mixed with methanol, isopropyl alcohol, xylene and ethylbenzene. Based on the obtained results the carbon steel lifetime of 30 years, provided proper inhibitors are present and 3mm corrosion allowance, can be achieved for hot aquifers service with presented water compositions.
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Stupnis̆ek-Lisac, E., A. Brnada, and A. D. Mance. "Secondary amines as copper corrosion inhibitors in acid media." Corrosion Science 42, no. 2 (February 2000): 243–57. http://dx.doi.org/10.1016/s0010-938x(99)00065-7.

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Braun, Robert D., Emilio E. Lopez, and Daniel P. Vollmer. "Low molecular weight straight-chain amines as corrosion inhibitors." Corrosion Science 34, no. 8 (August 1993): 1251–57. http://dx.doi.org/10.1016/0010-938x(93)90085-u.

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Dissertations / Theses on the topic "Amines as corrosion inhibitors"

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Smart, A. U. "Industrial boiler system corrosion inhibitors : Studies on the high temperature reactions and properties of aliphatic amines in water." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234970.

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Díaz, Jorge G. "Effect of Amines as Corrosion Inhibitors for a Low Carbon Steel in Power Industry." Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4666/.

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Commonly used amines in power industry, including morpholine, DBU (1,8-diazabicyclo[5.4.0]undec-7-ene), and DMA (dimethylallylamine) were evaluated for their effect on AISI 1018 steel at 250oF. Samples were exposed to an autoclave containing amine added aqueous solution at pH of 9.5 for 1, 2, 4, 6, 8, and 12 hours. Morphology studies were carried using scanning electron microscope (SEM), phase analysis was done utilizing Fourier transform infrared spectroscopy (FTIR), and weight loss was performed to assess kinetics of oxidation. Control samples showed the highest metal dissolution rate. DBU showed the best performance in metal protection and SEM indicated the presence of a free-crack layer formed by fine particles in that set. FTIR showed that DBU apparently favored the formation of magnetite. It is believed that fine particles impede intrusion of aggressive ions into the metal surface by forming a barrier layer. FTIR demonstrated that DMA formed more oxyhydroxides, whereas morpholine presented magnetite to hematite transformation as early as 2 hours. SEM revealed that control and DMA produced acicular particles characteristic of oxyhydroxides while morpholine and DBU presented more equiaxed particles.
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Phanasgaonkar, Alka 1956. "Diffusion and protection mechanisms of migratory corrosion inhibitors in reinforced concrete." Monash University, Dept. of Materials Engineering, 2000. http://arrow.monash.edu.au/hdl/1959.1/9200.

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Mercier, Dimitri Barthes-Labrousse Marie-Geneviève. "Étude des mécanismes de formation de l'interphase dans les systèmes époxy-amine/aluminium." Créteil : Université de Paris-Val-de-Marne, 2007. http://doxa.scd.univ-paris12.fr:8080/theses-npd/th0393941.pdf.

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Thèse de doctorat : Électrochimie : Paris 12 : 2006.
Version électronique uniquement consultable au sein de l'Université Paris 12 (Intranet). Titre provenant de l'écran-titre. Bibliogr. : 110 réf.
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Al-Zubail, Saleh Abdullah. "An evaluation of efficiency of phenylenediamines as corrosion inhibitors for ASTM-A-179 steel in 1.0 N hydrochloric acid at room temperature." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183039807.

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Mercier, Dimitri. "Étude des mécanismes de formation de l'interphase dans les systèmes époxy-amine/aluminium." Paris 12, 2006. https://athena.u-pec.fr/primo-explore/search?query=any,exact,990003939410204611&vid=upec.

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Dans les systèmes collés ou peints époxy-amine / aluminium, la mise en contact du liquide polymérique sur le substrat métallique, provoque, par dissolution de l'oxyde de surface par les groupements amine du durcisseur aminé, la formation d'une zone modifiée appelée interphase. Les propriétés finales de ces systèmes dépendent fortement des caractéristiques de cette interphase. Pourtant les molécules aminées sont reconnues et utilisées comme inhibiteurs dans les problèmes de corrosion. L'étude de l'interaction d'une molécule aminée simple (le 1,2-diaminoéthane) avec un substrat d'aluminium a permis de mettre en évidence un double effet sur le substrat. En effet la molécule peut former un complexe de sphère interne bidentate mononucléaire instable (adsorption des deux pôles amines sur le même cation métallique) provoquant la dissolution du substrat et permettant d'expliquer le phénomène de formation de l'interphase dans les systèmes époxy-amine / aluminium. Par ailleurs, cette molécule peut former des complexes stables de sphère externe (monodentate ou bidentate) qui permet, dans certaines conditions, la protection du substrat
When they are applied onto aluminium substrates, epoxy-amine liquid monomers react with the oxide-covered metal to form an interphase by dissolution of the oxide layer by amine hardener. This interphase is of particular interest to determine the physical and chemical properties of the bondary (practical adhesion, corrosion resistance and durability). On the other hand diamine molecules are often used as inhibitors of corrosion. The study of the interaction of 1,2-diaminoethane (molecule used as amine curing agent and inhibitor) with aluminium susbstrate has displayed different effects of the molecule on the substrate. The diamine molecule can form a mononuclear inner-sphere complex (bidentate). This complex is not stable and leads to the dissolution of the substrate thus explaining the formation of the interphase. On the other hand the diamine molecule can form a binuclear outer-sphere complex (monodentate or bidentate). This complex is very stable and can protect the substrate
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Lima, Eduardo Galdino Alves. "Avaliação da capacidade inibidora da corrosão de aminas a partir do aspecto molecular." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7288.

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This project aims the evaluation of some amines as corrosion inhibitors in carbon steel alloys amid hydrochloric acid (pickling bath). For that, analytical aspects of corrosion process has been considered and the results were interpreted considering the molecular interaction with the metal surface.
Este projeto visa avaliação de algumas aminas como inibidores de corrosão em ligas de aço carbono na presença de ácido clorídrico. Para tal, foram considerados os aspectos reacionais e comportamentais, e os resultados foram interpretados considerando a interação molecular com a superfície metálica.
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Tan, Swee Hain. "Organic corrosion inhibitors." Murdoch University, 1991. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20060818.150145.

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The overall aims of this thesis were to conduct a broad survey of possible organic corrosion inhibitors in near-neutral chloride solutions and to elucidate the mechanisms of such action. Altogether, 130 organic compounds were studied as possible corrosion inhibitors for pure iron, mild steel, copper and aluminium in aerated near-neutral (pH = 8.4) solutions containing 500 ppm NaCl and 100 ppm NaHCO,, conditions often encountered in water-based automotive engine coolants. Inhibitor behaviour was investigated using steady-state electrochemical techniques including polarisation curves, Stern-Geary and corrosion potential (Em,) measurements. The organic compounds examined were found to be highly specific in their inhibitive action toward the metals studied. Typical examples of highly effective corrosion inhibitors were: sebacate and octanoate for pure iron; oleate and sebacate for mild steel; benzotriazole and 2-mercaptobenzothiazole for copper; and laurate and oleate for aluminium. E, was found to provide a rapid and convenient screening test for evaluating the inhibitor performance of organic compounds toward pure iron, mild steel and aluminium but was less useful for copper. Good organic inhibitors were found to act as anodic inhibitors toward pure iron and mild steel but as anodic or mixed-type inhibitors toward copper. For aluminium, the majority of the compounds studied were found to act as anodic inhibitors. However,However, it was also found that only pit initiation was inhibited, i.e. existing pits were not prevented from developing. Optical microscopy of pitted aluminium surfaces indicated their nature varied considerably with inhibition efficiency. The role of complex formation in organic corrosion inhibitors was found to vary with the metal. Complexation of either iron(I1) or iron(II1) ions was found to have an insignificant effect on mild steel. The corrosion rate of copper was found to increase with the copper(LI) complex stability, thus indicating complex formation to be the rate-determining step. For aluminium, the observed effects were found to depend on complex stability. For weak to moderate complexants, inhibitor efficiency (measured as E,,) increased with increasing complexation. However, very strong complexing agents were sufficiently stable to dissolve the aluminium oxide surface, leading to poor inhibition. Aluminium pit morphology was found, using scanning electron microscopy, to change from hemispherical in the uninhibited solution to irregular in the presence of complexing inhibitors. No simple relationships between inhibitor efficiency and molecular structure were found. However, carbon chain length, the nature of functional group(s) and their location in the molecule were found to be important but varied according to the metal. The inhibiting ability of sebacate (a straight chain C, dicarboxylate) was found not to be compromised by water movement (stirring) or pre-existing corrosion product layers. Immersion tests showed that passive film formation on mild steel in sebacate solution involved two stages and was complete only after -100 h immersion. The ion selective properties of several iron(II1) carboxylates and hydrated iron(II1) oxide films were studied by membrane potential measurements in neutral sodium chloride solutions. Some specimens were also studied by Mossbauer spectroscopy. These results show that dicarboxylates are good inhibitors toward mild steel because they form impermeable films. Poor inhibitor performance is associated with the anion selectivity of the film which in turn appears to be related to the film purity. A model is suggested for the inhibition mechanism of mild steel corrosion by dicarboxylates in aerated near-neutral chloride solutions.
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El, Moaty Ibrahim S. "Surfactant properties of corrosion inhibitors." Thesis, University of Hull, 2011. http://hydra.hull.ac.uk/resources/hull:5807.

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Corrosion is one of the most common, costly and widespread industrial problems in the oil and gas production industry. Surfactant addition is one of many ways to inhibit the corrosion of metals, especially on hard-to-reach surfaces such as the inside of a pipe through which fluid is flowing. The application of small quantities of an inhibitor to production fluids is the most cost-effective method for imparting corrosion protection to a system. Despite the popularity of surfactants as corrosion inhibitors, their actual behaviour inside a pipeline is not well understood. The homologous alkylbenzyldimethylammonium chlorides CnBDMAC series is one of the most common corrosion inhibitors used in the oil industry. This thesis addresses some of the surfactant properties of these corrosion inhibitors which are not studied in detail (or often ignored) through electrochemical studies. Firstly, the adsorption behaviour of these corrosion inhibitors at the air-water interface was investigated as a function of the alkyl chain length, temperature and the concentration of the added electrolyte. The surfactant chain length and brine addition were found to have a great influence on the adsorption behaviour and hence on the critical micelle concentration (cmc). Secondly, the ability of CnBDMAC corrosion inhibitors to stabilize both oil-in-water and water-in-oil emulsions and the phase inversion of the emulsions as the inhibitor structure, temperature, electrolyte concentration and oil type change has been studied. The partitioning behaviour of C16BDMAC between an aqueous brine phase and an oil phase has been investigated as well as a function of electrolyte concentration. Studying the adsorption behaviour of surfactant corrosion inhibitors at solid-liquid interfaces provides important information about their action mechanism, which in turn helps in improving their efficiency. The adsorption behaviour of CnBDMAC molecules has been studied as a function of the surfactant chain length, temperature and electrolyte concentration using the Quartz Crystal Microbalance (QCM) technique. The QCM technique provides an effective, easy to setup and quick in-situ monitoring method for studying qualitatively the adsorption of surfactants at the solid-liquid interface. However, the determined adsorption isotherms were found to overestimate the amount of surfactant adsorbed. Therefore, the depletion method has been used to study the adsorption characteristics of CnBDMAC onto a stainless steel powder. Pipes used in oilfields for crude oil transportation are mainly made of mild steel. Accordingly, it is crucial to understand the adsorption behaviour of these corrosion inhibitors onto the mild steel surface. The effect of surfactant structure, temperature and electrolyte concentration on the adsorption behaviour of CnBDMAC onto mild steel particles using the depletion method has been investigated. In addition, the depletion method has been used to study the adsorption of CnBDMAC onto sand which is one of the main corrosion inhibitor consuming-solids encountered naturally in the oilfield. The adsorption studies performed revealed that these inhibitors have a strong affinity for sand particles, particularly at low temperatures and diluted inhibitor concentrations. Finally, the corrosion inhibition performance of hexadecylbenzyldimethylammonium chloride (C16BDMAC) corrosion inhibitor has been investigated through the linear polarisation resistance technique as a function of the added sand amount. A model has been proposed and applied successfully to determine the percentage decrease in the corrosion inhibition efficiency of C16BDMAC with changes in the amount of sand added.
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Balaskas, Andronikos. "Corrosion protection by encapsulated inhibitors." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/corrosion-protection-by-encapsulated-inhibitors(6295df0b-7ae9-4e8f-957b-2f9468740cb8).html.

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This work, within EPSRC LATEST2 (Light Alloys Towards Environmentally Sustainable Transport 2) Programme Grant, is focused on the development of environmentally-friendly corrosion inhibitors, nanocontainers loaded with inhibitors and epoxy coatings for corrosion protection of the aerospace alloy AA 2024-T3. More specifically, the electrochemical techniques of image assisted electrochemical noise, electrochemical impedance spectroscopy, split-cell technique and potentiodynamic polarization were used for the qualitative and quantitative evaluation and characterization of environmentally-friendly corrosion inhibitors on AA 2024-T3. Scanning electron microscopy observations complemented the electrochemical measurements. It was found that the organic inhibitor 2-mercaptobenzothiazole provides excellent corrosion inhibition properties to AA 2024-T3 in 3.5% sodium chloride solution. Among the tested nitrates, cerium nitrate provides the best inhibition performance. The concentration of the nitrate salt is critical in determining the corrosion protection. An excessive concentration of nitrate ions results in the dissolution of copper-containing oxides, increasing the corrosion rate. Different types of core-shell structured nanocontainers were synthesised with the methods of distillation precipitation polymerization, emulsion polymerization and sol-gel. The nanocontainers were characterized by scanning electron and transmission electron microscopy observations. The corrosion inhibitor 2-mercaptobenzothiazole was encapsulated into the nanocontainers. The encapsulation of 2-mercaptobenzothiazole was evaluated with energy dispersive X-ray analysis mapping micrographs from transmission electron microscopy measurements. Epoxy coatings with nanocontainers loaded with 2-mercaptobenzothiazole were applied on AA 2024-T3 for protection against corrosion. The corrosion protection properties of the coatings were evaluated with electrochemical impedance spectroscopy. The results indicated that epoxy coatings provide excellent barrier properties to AA 2024-T3 in the demanding environment of 3.5% sodium chloride solution with low frequency impedance values more than 1 GOhm cm2 for over 4000 hours of testing. Coatings containing nanocontainers loaded with 2-mercaptobenzothiazole tested with an artificial scribe revealed protection of the AA 2024-T3 substrate in the scribed area, decrease of the anodic delamination in the early hours and decrease number of cathodic dark areas after long immersion time. Overall, epoxy coatings with encapsulated inhibitors can be considered as a promising system for potential replacement of hexavalent chromium treatments on aerospace alloy AA 2024-T3.
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Books on the topic "Amines as corrosion inhibitors"

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Baumgartner, William G. Corrosion inhibitors. Cleveland, Ohio: Freedonia Group, 1997.

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Hayes, Teresa L. Corrosion inhibitors. Cleveland, Ohio: Freedonia Group, 2002.

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Innes, George L. Corrosion inhibitors. Norwalk, CT: Business Communications Co., 1999.

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Fowler, Paul Anthony. Polyhydroxylated amines as glucosidase inhibitors. Norwich: University of East Anglia, 1993.

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Sastri, V. S. Green Corrosion Inhibitors. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118015438.

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Flick, Ernest W. Corrosion inhibitors: An industrial guide. Park Ridge, N.J: Noyes Publications, 1987.

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Corrosion inhibitors: An industrial guide. 2nd ed. Park Ridge, N.J., U.S.A: Noyes Publications, 1993.

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Sastri, V. S. Corrosion inhibitors: Principles and applications. Chichester: Wiley, 1998.

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Kuznetsov, Yurii I. Organic inhibitors of corrosion of metals. Edited by Thomas J. G. N. New York: Plenum Press, 1996.

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Kuznetsov, Yurii I., A. D. Mercer, and J. G. N. Thomas. Organic Inhibitors of Corrosion of Metals. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-1956-4.

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Book chapters on the topic "Amines as corrosion inhibitors"

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Argyropoulos, Vasilike, Stamatis C. Boyatzis, Maria Giannoulaki, Elodie Guilminot, and Aggeliki Zacharopoulou. "Organic Green Corrosion Inhibitors Derived from Natural and/or Biological Sources for Conservation of Metals Cultural Heritage." In Microorganisms in the Deterioration and Preservation of Cultural Heritage, 341–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-69411-1_15.

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AbstractIn the last decade, there has been an increase in research related to green corrosion inhibitors for conservation of metals cultural heritage to help promote sustainable practices in the field that are safe, environmentally friendly, and ecologically acceptable. The most common are organic substances derived either from natural and/or biological sources: plant extracts and oils, amino acids, microorganisms, and biopolymers. The chapter will provide a review of these substances as corrosion inhibitors for metals conservation, by discussing the state-of-the-art research to date, with a special focus on cysteine. Most of the research has focused on the examination of such inhibitors on metal coupons with or without corrosion products using electrochemical techniques or weight-loss measurements to determine their effectiveness. Some of these studies have also considered the conservation principles for practice, i.e., reversibility of the treatment and the visual aspect of the modification of the treated metal surface. However, before such green inhibitors can be routinely applied by conservators, more research is required on their application to real artefacts/monuments using in situ corrosion measurements. Furthermore, given that the composition of a green inhibitor is highly dependent on its extraction process, research must also involve identifying the specific adsorption models and involved mechanisms to ensure reproducibility of results.
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McCafferty, E. "Corrosion Inhibitors." In Introduction to Corrosion Science, 357–402. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-1-4419-0455-3_12.

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Papavinasam, S. "Corrosion Inhibitors." In Uhlig's Corrosion Handbook, 1021–32. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470872864.ch71.

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Bradford, Samuel A. "Corrosion Inhibitors." In Corrosion Control, 235–48. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4684-8845-6_11.

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Andreatta, F., and L. Fedrizzi. "Corrosion Inhibitors." In Active Protective Coatings, 59–84. Dordrecht: Springer Netherlands, 2016. http://dx.doi.org/10.1007/978-94-017-7540-3_4.

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Bieck, P. R., G. Aichele, C. Schick, E. Hoffman, and E. Nilsson. "Metabolism of Tyramine on Subjects Treated with Different Monoamine Oxidase Inhibitors." In Trace Amines, 423–37. Totowa, NJ: Humana Press, 1988. http://dx.doi.org/10.1007/978-1-4612-4602-2_39.

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Papavinasam, S. "Evaluation and Selection of Corrosion Inhibitors." In Uhlig's Corrosion Handbook, 1121–27. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470872864.ch84.

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Kaesche, Helmut. "Adsorption Inhibitors of Acid Iron Corrosion." In Corrosion of Metals, 144–58. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-642-96038-3_7.

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Nguyen, T. V., A. V. Juorio, and A. J. Greenshaw. "The Use of Mao Inhibitors in Lesion Studies: An Assessment of ‘Flooding’ in Trace Amine Measurements." In Trace Amines, 295–99. Totowa, NJ: Humana Press, 1988. http://dx.doi.org/10.1007/978-1-4612-4602-2_27.

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Costello, Michael T. "Corrosion Inhibitors and Rust Preventatives." In Lubricant Additives, 393–408. Third edition. | Boca Raton : CRC Press, Taylor & Francis Group, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315120621-21.

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Conference papers on the topic "Amines as corrosion inhibitors"

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Ng, Jun Hong Clarence, Tariq Almubarak, and Hisham A. Nasr-El-Din. "Seed Extracts as Natural, Green, Non-Toxic Corrosion Inhibitors." In SPE Trinidad and Tobago Section Energy Resources Conference. SPE, 2021. http://dx.doi.org/10.2118/200935-ms.

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Abstract Acid treatments are commonly used in the oilfield to remove inorganic scale or to stimulate formatio ns. These treatments typically consist of using hydrochloric acid (HCl), acetic acid, formic acid, or chelating agents. At elevated temperatures, these acids are highly corrosive and can cause severe damage to tubulars as well as downhole equipment. To reduce damage from these acids, corrosion inhibitors are added to the treatment solution. Corrosion inhibitors used in the oil and gas industry are typically quaternary amines or sulfur-containing compounds. These compounds adsorb to the surface of the metal, thereby reducing contact between the metal surface and the corrosive substance. However, these corrosion inhibitors are damaging to the environment and harmful to human health. Alternative new environmentally-friendly corrosion inhibitors are also either toxic to the human body or face performance limitations at higher temperature field applications. To develop new environmentally friendly and non-toxic corrosion inhibitors for high-temperature applications, 15 edible seeds were tested as alternative sources of corrosion inhibitors. In order to determine the inhibition effect of 15 different seeds, N-80 and S13Cr coupons were exposed to 15 wt.% HCl solutions at temperatures between 77-250°F with 2 wt.% of grounded seed added for 6 hours. In addition, a control solution containing no corrosion inhibitor was used to establish a corrosion rate for a base case. This paper will show the results of such seeds and attempt to provide an awareness of natural seeds extract for use as corrosion inhibitors in conjunction with well acid treatments. It was noted that out of the 15 seeds, seeds 1 and 2 were found to perform the best at these conditions, exhibiting more than 90% corrosion inhibition efficiency. Seed 4 was observed to perform the worst, exhibiting only 16.8% inhibition efficiency. At 150°F, 2 wt.% of seeds 1 and 2 were tested with seed 1 achieving a corrosion rate of 0.00253 lb/ft2 while seed 2 was unable to provide sufficient inhibition with a corrosion rate of 0.153 lb/ft2. The control solution was found to have a corrosion rate of 0.371 lb/ft2 over the 6 hours at 150°F. Seed 1 was further tested at 200°F with the addition of corrosion inhibitor intensifiers and resulted in a corrosion rate of 0.00087 lb/ft2, while at 250°F, a corrosion rate of 0.00811 lb/ft2 was observed. The tests using S13Cr also showed that seed 1 worked well as a corrosion inhibitor for CRAs. The thermal degradation of seed 1 was also examined using NMR. These results show a new naturally occurring, green, non-toxic, high-temperature applicable corrosion inhibitor that can be developed from edible seeds.
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Tiwari, Laxmikant. "Design & Development of Quaternary Amine Compounds: Corrosion Inhibitors with Improved Environmental Profiles." In SPE International Symposium on Oilfield Corrosion. Society of Petroleum Engineers, 2005. http://dx.doi.org/10.2118/95081-ms.

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Habib, Sehrish, Eman Fayyed, Muddasir Nawaz, Adnan Khan, Abdul Shakoor, Ramazan Karahman, and Aboubakr Abdullah. "Self-healing performance of smart coatings modified with different corrosion inhibitors." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0002.

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Corrosion results in considerable materials and equipment failure. According to one survey, about 1/4 to 1/3 of the total interruption in industries is due to detrimental effects of corrosion. It is, therefore, important to prevent corrosion to guarantee the reliability of the assets. The present work is aimed to explore the purpose of CeO2 as a carrier for corrosion inhibitors and its capability to release inhibitors, to achieve decent corrosion protection efficiency in epoxy-based polymeric nanocomposite coatings. Amine-based corrosion inhibitors (N-methylthiourea NMTU and Dodecylamine DDA) were used for CeO2 nano container modification, and corrosion inhibition efficiency has been explored utilizing electrochemical impedance spectroscopy (EIS) in 3.5 wt% NaCl solution. Loading of inhibitor into nanocontainer has been confirmed through Fouriertransform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET). It was observed that 25% and 29.75% w/w of NMTU and DDA were loaded into nanocontainers, confirmed through Thermogravimetric analysis (TGA). Scanning electron microscopy (SEM) analysis endorsed the formation of a protective layer on a scratch area to protect steel from the external environment. This protective layer played a very important role in protecting steel from progressing corrosion on the defect site from the aggressiveness of the solution. EIS measurements revealed the decent corrosion inhibition efficiency of these inhibitors in order of DDA>NMTU. As a result, they are a favorable solution for longer endurance of coated piping steel and decreased operation expense contributing to economic savings, materials reliability and safety.
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Al-Taq, Ali Abdullah, Shaikh A. Ali, Habeeb Al-Haji, Jaffar A. Saleem, and Hussain A. Al-Ibrahim. "Performance of Synthesized Amine-based Corrosion Inhibitors in Concentrated HCl Acid Solutions: Effect of Intensifier." In SPE International Conference & Workshop on Oilfield Corrosion. Society of Petroleum Engineers, 2012. http://dx.doi.org/10.2118/154957-ms.

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Ali, A. Al-Taq, A. Ali Shaikh, and A. Alrustum Abdullah. "Performance Variation of Quaternary Amine Corrosion Inhibitors as a Function of Hydrocarbon Chain Length with Respect to Temperature." In SPE International Oilfield Corrosion Conference and Exhibition. Society of Petroleum Engineers, 2018. http://dx.doi.org/10.2118/190900-ms.

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Radulescu, Victorita. "New Solution With Syntheses Inhibitors for the Chemical Cleaning of Organic Pollutants From the Water Supply System Of Generators." In ASME 2021 Power Conference. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/power2021-64314.

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Abstract In thermal power plants, during the boilers functioning, heterogeneous deposits of substances must often be removed in order to prolong their operation and avoid their deterioration. The nature, type and quantity of deposits depend on the characteristics of the water supply systems and the chemical operating regime. For boilers with high deposits of copper and iron, the utilization of mineral acids for chemical cleaning is not quite effective, because their surfaces may be covered with a metal copper film. Organic impurities in the water supply affect the operation of steam generators, increasing electrical conductivity and lowering the pH. The heterogeneous composition of the deposits is unevenly distributed in the combustion system, making its cleaning a complex problem. For efficient chemical cleaning, the agents must have a minimal corrosive action on the metal surfaces, ensuring only the dissolution of the compounds on the surface of the boilers. To prevent corrosion of metals, inhibitors are introduced to diminish the reactions on the metal surface or at least to delay the kinetics of the reaction. This paper analyzes the implications of organic pollutants in the corrosion phenomena and chemical processes where they are involved. As an example, the power plant Borzesti affiliated to the Petrochemical Platform, Bacau County, Romania is presented. The adopted solution uses as an inhibitor, a synthesis between amino alcohol and a thiazole, in the presence of water. This inhibitor has been tested in the laboratory on different steels used in energy pipes, in different areas of the thermal circuits in the boiler, as pure steel or with different alloys. The methods used to reduce the effects of corrosion are briefly presented. Four classes of organic substances with properties of corrosion inhibitors in the organic acid environment were analyzed. The experimental results obtained, associated with a comparative analysis of corrosion rates, for different concentrations of inhibitors for a time interval of 4 hours are mentioned. In the second stage, the inhibitor behavior was analyzed for 6h and 8h. Corrosion rates are estimated by measuring the weight loss of the tested probes. Finally, the most suitable types of inhibitors, adapted at different metal compositions are presented, with a result in the cleaning of more than 98% of the surface of the boilers.
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Papir, Y. S., A. H. Schroeder, and P. J. Stone. "New Downhole Filming Amine Corrosion Inhibitor for Sweet and Sour Production." In SPE International Symposium on Oilfield Chemistry. Society of Petroleum Engineers, 1989. http://dx.doi.org/10.2118/18489-ms.

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Martin, Richard L. "Unusual Oilfield Corrosion Inhibitors." In International Symposium on Oilfield Chemistry. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/80219-ms.

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Zaid, Gene H., and Donald W. Sanders. "Binary Corrosion Inhibitors Offer Improved Corrosion Control." In SPE Western Regional/AAPG Pacific Section Joint Meeting. Society of Petroleum Engineers, 2003. http://dx.doi.org/10.2118/83481-ms.

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Hellberg, Per-Erik. "Environmentally Acceptable Polymeric Corrosion Inhibitors." In SPE International Symposium on Oilfield Chemistry. Society of Petroleum Engineers, 2011. http://dx.doi.org/10.2118/140780-ms.

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Reports on the topic "Amines as corrosion inhibitors"

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Mossine, Valerie V. Multivalent Lactulose-amines as Inhibitors of Prostate Cancer Metastasis. Fort Belvoir, VA: Defense Technical Information Center, March 2002. http://dx.doi.org/10.21236/ada406249.

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Biddle, T. B., and W. H. Edwards. Evaluation of Corrosion Inhibitors as Lubricity Improvers. Fort Belvoir, VA: Defense Technical Information Center, July 1988. http://dx.doi.org/10.21236/ada198743.

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Sikes, C. S. Polypeptide Inhibitors of Mineral Scaling and Corrosion. Fort Belvoir, VA: Defense Technical Information Center, June 1990. http://dx.doi.org/10.21236/ada241543.

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Hobbs, D. T. Strategic Research: In-Tank Generation of Corrosion Inhibitors. Office of Scientific and Technical Information (OSTI), August 2002. http://dx.doi.org/10.2172/799378.

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Frankel, Gerald S., Rudolph G. Buchheit, Mark Jaworowski, and Greg Swain. Scientific Understanding of Non-Chromated Corrosion Inhibitors Function. Fort Belvoir, VA: Defense Technical Information Center, January 2013. http://dx.doi.org/10.21236/ada582500.

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Striebich, Richard C. Effect of Corrosion Inhibitors on Conductivity of Aviation Turbine Fuel. Fort Belvoir, VA: Defense Technical Information Center, March 1986. http://dx.doi.org/10.21236/adb100948.

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Frankel, Gerald S. Mechanism of Al Alloy Corrosion and the Role of Chromate Inhibitors. Fort Belvoir, VA: Defense Technical Information Center, December 2001. http://dx.doi.org/10.21236/ada399114.

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Obrien, Ivette Z. Biotransformation Potential and Uncoupling Behavior of Common Benzotriazole-Based Corrosion Inhibitors. Fort Belvoir, VA: Defense Technical Information Center, January 2002. http://dx.doi.org/10.21236/ada414450.

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Bessee, Gary B. Effects of Various Corrosion Inhibitors/Lubricity (CI/LI) on Fuel Filtration Performance. Fort Belvoir, VA: Defense Technical Information Center, March 2008. http://dx.doi.org/10.21236/ada483759.

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Maurice, Lourdes Q., Jr Miller, Flahive Paul L., Striebich James P., and Richard C. Effect of Corrosion Inhibitors on Lubricity as Measured by the Ball-On- Cylinder Instrument. Fort Belvoir, VA: Defense Technical Information Center, June 1987. http://dx.doi.org/10.21236/ada218156.

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