Influence of halide mixtures with organiccompounds on dissolution of and hydrogen absorption by low-C steel in H2SO4

Hudson, R. M.; Warning, C. J.

doi:10.1016/s0010-938x(70)80009-9

Cited by 31 publications

(7 citation statements)

References 15 publications

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“…Gomma48 and Ebenso22 have shown that a cooperative effect results on addition of a halide salt to sulphuric acid solution containing an organic compound, which inhibits the corrosion of iron. Halides have been reported to inhibit the corrosion of some metals in strong acids and this effect depends on the ionic size through the electrostatic field set up by the negative charge of the anion on adsorption sites 22, 49–54. A similar trend has been observed in this study involving alkaline medium.…”

Section: Resultssupporting

confidence: 86%

Synergistic effect of halide ions and polyethylene glycol on the corrosion inhibition of aluminium in alkaline medium

Umoren

Ebenso

Ogbobe

2009

J of Applied Polymer Sci

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ABSTRACT:The corrosion inhibition of aluminium in alkaline medium was studied at 30 and 40 C in the presence of polyethylene glycol (PEG) using gravimetric (weight loss) and thermometric techniques. The effect of halides (KCl, KBr, and KI) on the inhibitory action of PEG was also studied. It was found that PEG acted as inhibitor for aluminium corrosion in the alkaline medium. Inhibition efficiency increased with increasing inhibitor concentration. An increase in temperature led to increase in both the corrosion rate and inhibition efficiency in the absence and presence of inhibitor and halides. Phenomenon of chemical adsorption mechanism is proposed from the values of E a , Q ads , and DG o ads obtained. The adsorption of PEG on the surface of aluminium was found to obey Flory-Huggins and Temkin adsorption isotherms. The synergism parameter, S 1 evaluated was found to be greater than unity indicating that the enhanced inhibition efficiency caused by the addition of halides is synergistic in nature. The inhibition efficiency, surface coverage and synergism parameter increased in the order;showing that a joint adsorption of PEG and halide ions on aluminium plays a significant role in the adsorption process.

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Section: Resultssupporting

confidence: 86%

Synergistic effect of halide ions and polyethylene glycol on the corrosion inhibition of aluminium in alkaline medium

Umoren

Ebenso

Ogbobe

2009

J of Applied Polymer Sci

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“…It plays an important role not only in theoretical research on corrosion inhibitors but also in practical work [2]. In previous investigations, synergism between organic inhibitors and halide ions on metal corrosion in acidic solution has been studied by many authors [2][3][4][5][6][7][8][9][10][11][12][13]. The synergistic inhibition effects of organic inhibitor/metallic ion mixture [14][15][16][17], organic inhibitor/organic inhibitor mixture [18][19][20][21][22] and inorganic inhibitor/inorganic inhibitor mixture [23] on corrosion of metal in acidic media have also been studied.…”

Section: Introductionmentioning

confidence: 99%

Synergism between rare earth cerium(IV) ion and vanillin on the corrosion of steel in H2SO4 solution: Weight loss, electrochemical, UV–vis, FTIR, XPS, and AFM approaches

Deng

et al. 2008

Applied Surface Science

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“…The extensive use of inorganic compounds as inhibitors as such or in combination with organic compounds for solution phase as well as for coating has been reported in literature. The presence of inorganic compounds in the solution enhances the effectiveness of the organic inhibitors through the phenomenon of synergism [42]. Literature survey shows that synthetic compounds have been employed most commonly but their recent application now based on their several physiochemical properties like cost, lifespan, effectiveness, ease of synthesis and applications, solubility in the test medium, temperature and pH dependent stability etc.…”

Section: Corrosion Inhibitorsmentioning

confidence: 99%

Volatile corrosion inhibitors for ferrous and non-ferrous metals and alloys: A review

Ansari¹,

Verma²,

Siddiqui³

et al. 2018

Int. J. Corros. Scale Inhib.

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Volatile corrosion inhibitors (VCIs) or vapor phase inhibitors (VPIs) represent a class of compounds that are employed to protect the corrosion or oxidation of ferrous and nonferrous metals and alloys where other surface treatments are impractical. The VCIs release slowly inside the sealed airspace and actively adsorb and prevent corrosion. Several VCIs have been employed as effective inhibitors for several metals like iron, zinc, aluminum, etc. and their alloys. Literature study revealed that VCIs protect metallic corrosion either by forming a surface protective film on the metal surface or neutralizing the corrosive surrounding reagents H 2 O, SO 2 , H 2 S and CO 2 , etc. Because of the high volatility, VCIs easily vaporize and their vapors condense on the metallic surface as well as the volume available in the crevices, pores and cracks thereby gives complete protection where they used. The VCIs can be inserted into coatings, foams, adhesives, powders, sprays and plastics. Several VCIs are known those act as effective inhibitors by themselves and few other VCIs are also known those hydrolyzed products act as corrosion inhibitors. The inhibition ability as well as quantity of the adsorbed VCIs on metallic surfaces can be determined by several commonly employed techniques such as contact angle, radiotracer, polarographic and electrocapilarity methods. Present review article describes the assortment of previous works published on VCIs as corrosion inhibitors for ferrous and non-ferrous metals and alloys. The present report also deals with salient features of VCIs and mechanism of their action.

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Influence of halide mixtures with organiccompounds on dissolution of and hydrogen absorption by low-C steel in H2SO4

Cited by 31 publications

References 15 publications

Synergistic effect of halide ions and polyethylene glycol on the corrosion inhibition of aluminium in alkaline medium

Synergistic effect of halide ions and polyethylene glycol on the corrosion inhibition of aluminium in alkaline medium

Synergism between rare earth cerium(IV) ion and vanillin on the corrosion of steel in H2SO4 solution: Weight loss, electrochemical, UV–vis, FTIR, XPS, and AFM approaches

Volatile corrosion inhibitors for ferrous and non-ferrous metals and alloys: A review

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