Nicotinic acid as an inhibitor for corrosion of mild steel in hydrochloric acid solutions

Subrahmanyam, D. V.; Char, T.L. Rama

doi:10.1108/eb005234

Cited by 5 publications

(4 citation statements)

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“…The chemical composition of the water extracts from cigarette butts mainly comprises aromatic amines including nicotine and its compounds. , And since 1958, nicotine and its compounds used as corrosion inhibitor were continually reported. − For example, Subrahmanyam used nicotinic acid as the corrosion inhibitor for mild steel in 1 N HCl and obtained 93% corrosion inhibitive efficiency in 1967. Nicotine or nicotinamide used as corrosion inhibitor − was reported less than nicotinic acid.…”

Section: Introductionmentioning

confidence: 99%

“…3,4 And since 1958, nicotine and its compounds used as corrosion inhibitor were continually reported. [5][6][7][8][9] For example, Subrahmanyam 8 used nicotinic acid as the corrosion inhibitor for mild steel in 1 N HCl and obtained 93% corrosion inhibitive efficiency in 1967. Nicotine or nicotinamide used as corrosion inhibitor [10][11][12] was reported less than nicotinic acid.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the Corrosion Inhibitive Effect of Anaerobic and Aerobic Cigarette Butts Water Extracts on N80 Steel at 90 °C in Hydrochloric Acid Solution

Zhao

Zhang

et al. 2010

Ind. Eng. Chem. Res.

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The chemical compositions of cigarette butts water extracts mainly are aromatic amines including nicotine and its compounds. If oxygen exists, the aromatic amine compounds can be oxidized easily. Whether this oxidation would be beneficial in enhancing the corrosion inhibitive effect of the inhibitor is not known. In this study, the corrosion inhibitive effect of aerobic and anaerobic cigarette butts water extracts are compared on N80 steel at 90 °C in 15% (weight %) hydrochloric acid. The chemical compositions of the aerobic and anaerobic cigarette butts water extracts are also contrasted. Weight loss, X-ray diffraction, and electrochemical techniques (such as electrochemical noise, impedance, and potentiodynamic polarization) are used to evaluate the corrosion inhibitive effect of aerobic and anaerobic cigarette butts water extracts. Results show that the inhibition efficiency of the aerobic cigarette butts water extracts (92.9%) is higher than anaerobic cigarette butts water extracts (84.6%).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparison of the Corrosion Inhibitive Effect of Anaerobic and Aerobic Cigarette Butts Water Extracts on N80 Steel at 90 °C in Hydrochloric Acid Solution

Zhao

Zhang

et al. 2010

Ind. Eng. Chem. Res.

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“…It is known [7] that nicotinic acid (C 5 H 4 NCOOH) as vitamin is a good inhibitor for mild steel [8], aluminium [9] and zinc [10]. Nicotinic acid, also known as pyridine-3carboxylic acid, forms different types of metal complexes [11].…”

Section: Introduction *mentioning

confidence: 99%

Formation of Conversion Coatings on Magnesium Alloy AZ31 in Solutions Containing Nicotinic Acid

Bikulčius

Ručinskienė

Bukelskienė³

et al. 2012

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The coating of nicotinic acid (NA), sodium fluoride (SF) and sodium fluoric - nicotinic acid (SF-NA) deposited from a sodium fluoric solution with subsequent treatment in nicotinic acid on magnesium alloy AZ31 has been investigated. The corrosion resistance of coated AZ31 in a simulated body fluid (SBF) solution was studied using potentiodynamic polarization tests. A comparison polarization tests results of conversion coatings have shown a sharp reduction in corrosion current density from SF to NA, respectively 70.1´10^–6 A/cm² to 20.4´10^–6 A/cm². The morphology of the coatings was studied by a scanning electron microscope (SEM). The results revealed that there are cracks in the NA coatings. Despite the presence of cracks, the NA coatings better protect the AZ31 magnesium alloy against corrosion than as SF coatings. The cytotoxicity tests showed that AZ31 magnesium alloy with NA conversion coatings have no any toxic effect on the normal adult stem cells and this means that the magnesium AZ31 alloy with NA is distinguished for its good biocompatibility in a cell culture in vitro.

DOI: http://dx.doi.org/10.5755/j01.ms.18.2.1912

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“…Both the inhibitors increase the cathode and anode polarisation considerably. DETAILED investigations have been carried out in this laboratory on the inhibition of the corrosion of aluminium and its alloys with thiourea 1-8 and nicotinic acid [1][2][3][4][5][6][9][10][11] , as well as of steel with nicotinic acid 12 in hydrochloric acid solutions. A review article 13 on thiourea and its derivatives as corrosion inhibitors covers the literature up to 1967.…”

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confidence: 99%

Inhibition of the corrosion of brass in nitric acid

Padma

Char²

1969

Anti-Corrosion Methods and Materials

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation.Thiourea and nicotinic acid are good inhibitors for the corrosion of brass in nitric acid solutions. Polarisation studies indicate that the anode polarisation with nicotinic acid is less than that on the cathode side. Both the inhibitors increase the cathode and anode polarisation considerably.DETAILED investigations have been carried out in this laboratory on the inhibition of the corrosion of aluminium and its alloys with thiourea 1-8 and nicotinic acid 1-6, 9-11 , as well as of steel with nicotinic acid 12 in hydrochloric acid solutions. A review article 13 on thiourea and its derivatives as corrosion inhibitors covers the literature up to 1967. Although pickling in nitric acid is common in the metal finishing industry, inhibitors are hardly used in this medium. The investigations on the inhibition aspect are rather meagre in literature, and this is particularly true with brass. A recent article 11 summarises the work reported in litera ture up to 1966 on the corrosion inhibition of brass in various media. This paper presents the results of studies with thiourea and nicotinic acid for the corrosion of brass in nitric acid solutions. Experiments and resultsThe brass sheet (SWG 22) was of the composition corresponding to the specification BS 265:1963-copper 61·5-64% and zincremainder, lead-0·30 (max.), other impurities 0·30 (max.)% (analysis: Cu-63·2% and Zn-36·3%). The metal coupon was punched in one piece with a steel die. It was of a circular design to minimise the edge effects (diameter 2cm with a tab) the total weight being approximately 3·8g. The tab was coated with Perspex from a chloroform solution leaving only the circular portion of apparent surface area 6·28cm 2 exposed to the corro sive medium. The sample was immersed in a beaker containing 100ml nitric acid solution.The pretreatment of the coupon was as follows: rounding off the edges, degreasing with acetone, buffing, treating with 4N nitric acid for 1min, washing with distilled water and drying. This process normally gave weight losses reproducible within ± 10%. The loss in weight was determined under the following conditions: (a) concentration of nitric acid 0·5, 1·0, and 1·5N, (b) temperature 32 ± 0·1°C, and (c) immers...

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Nicotinic acid as an inhibitor for corrosion of mild steel in hydrochloric acid solutions

Cited by 5 publications

References 2 publications

Comparison of the Corrosion Inhibitive Effect of Anaerobic and Aerobic Cigarette Butts Water Extracts on N80 Steel at 90 °C in Hydrochloric Acid Solution

Comparison of the Corrosion Inhibitive Effect of Anaerobic and Aerobic Cigarette Butts Water Extracts on N80 Steel at 90 °C in Hydrochloric Acid Solution

Formation of Conversion Coatings on Magnesium Alloy AZ31 in Solutions Containing Nicotinic Acid

Inhibition of the corrosion of brass in nitric acid

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