The acid corrosion of aluminium in water-organic solvent mixtures

Abd-El-Nabey, B.A.; Khalil, N.; Khamis, E.

doi:10.1016/0010-938x(85)90077-0

Cited by 26 publications

(14 citation statements)

References 10 publications

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“…The volume of hydrogen evolved was determined following the procedure previously described elsewhere. [28][29][30] A 100 mL solution of 0.1M-2M solution of NaOH was introduced into the reaction vessel connected to a burette through delivery tube. The initial volume of air in the burette was recorded.…”

Section: Weight Loss Determinationmentioning

confidence: 99%

Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol

Umoren

Ebenso

Okafor

et al. 2006

J of Applied Polymer Sci

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The corrosion inhibition of aluminum in NaOH in the presence of polyvinyl alcohol (PVA) at 30 and 408C and the effect of addition of halides (KCl, KBr, KI) were studied using weight loss and hydrogen evolution methods. Results obtained showed that PVA acts as a corrosion inhibitor in the alkaline environment. The inhibition efficiency increased with increase in concentration of PVA and synergistically increased on the addition of the halides but however decreased with rise in temperature. The phenomenon of physical adsorption is proposed from the obtained E a and Q ads values. PVA was found to obey Freundlich and Frumkin adsorption isotherms. The increase in inhibition efficiency I (%), surface coverage y values as well as synergistic parameter, S I were found to be in the order, which clearly indicates that the radii and electronegativity of the halides play a significant role in the adsorption process.

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Section: Weight Loss Determinationmentioning

confidence: 99%

Effect of halide ions on the corrosion inhibition of aluminium in alkaline medium using polyvinyl alcohol

Umoren

Ebenso

Okafor

et al. 2006

J of Applied Polymer Sci

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“…The inhibitive studies against the Al alloy corrosion have so far been tested under static aqueous solutions, which are quite different from a flowing system [10,[12][13][14][15], especially the ethylene glycol-water coolants [16,17]. In the recent 20 years, rare earth metal salts have been acknowledged as excellent inhibitors for Al alloy corrosion [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Inhibiting effect of cerium ions on corrosion of 3003 aluminum alloy in ethylene glycol–water solutions

Liu

Cheng

2010

J Appl Electrochem

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In this study, the inhibiting effect of cerium ions (Ce 3? ) on corrosion of 3003 aluminum alloy (AA3003) in ethylene glycol-water solutions was investigated using a rotating cylinder electrode, simulating the hydrodynamic condition of the automotive cooling system. Electrochemical measurements and surface characterization were conducted to study the inhibiting mechanism of Ce 3? on the Al alloy corrosion. It is found that Ce 3? serves as a cathodic inhibitor, and inhibits effectively corrosion of AA3003 in the flowing ethylene glycol-water solutions. The inhibiting effect of Ce 3? is resulted from the formation and deposit of Ce oxide and/or Ce hydroxide on the electrode surface. With the immersion time, the Ce deposit layer increases its thickness to cover the second phase particles, eliminating the galvanic coupling effect between the second phase particles and Al alloy substrate.

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“…The corrosion of Al-pigments in aqueous alkaline media [2], in a mixture of desalinated water and in butyl glycol [4], as well as the corrosion of Al in water-alcohol media (such as automotive engine coolants) [3] have been studied. The inhibition effect of the alcohol has been shown [3].…”

Section: Introductionmentioning

confidence: 99%