CORROSION INHIBITION OF CARBON STEEL IN LOW CHLORIDE MEDIA BY AN AQUEOUS EXTRACT OF<i>HIBISCUS ROSA-SINENSIS LINN</i>

Anuradha, K.; Raghavan, Vimala; Narayanasamy, Balaji; Selvi, J. Arockia; Rajendran, Susai

doi:10.1080/00986440701673283

Cited by 54 publications

(28 citation statements)

References 9 publications

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“…Al 3+ has coordinated with the O-atom of the -OH group, -C=O group and the ring oxygen atom. Similar observation has been made by Anuradha et al, who reported the formation of Fe 2+ -flower extract complex, while studying the inhibition of corrosion of carbon steel by the flower extract [26]. …”

Section: Analysis Of Ftir Spectrasupporting

confidence: 87%

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Corrosion Behaviour of Aluminium in the Presence of an Aqueous Extract of Hibiscus Rosa-sinensis

Rajendran¹,

Jeyasundari²,

Usha³

et al. 2009

Port. Electrochim. Acta

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The inhibition efficiency (IE) of an aqueous extract of Hibiscus rosa-sinensis (white) in controlling corrosion of aluminium at pH 12 has been evaluated by weight loss method in the absence and presence of Zn 2+ . The formulation consisting of 8 mL flower extract (FE) and 50 ppm of Zn 2+ had 98% inhibition efficiency. Polarization study revealed that this formulation functioned as cathodic inhibitor. AC impedance spectra revealed the presence of a protective film formed on the metal surface. FTIR spectra revealed that the protective film consisted of a complex formed between the active principle of the flower extract and Al 3+ .

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Section: Analysis Of Ftir Spectrasupporting

confidence: 87%

“…Various techniques such as polarization and AC impedance spectra have been used. The protective film has been analysed by FTIR and Atomic force Microscopy [26].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Behaviour of Aluminium in the Presence of an Aqueous Extract of Hibiscus Rosa-sinensis

Rajendran¹,

Jeyasundari²,

Usha³

et al. 2009

Port. Electrochim. Acta

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“…Synergism parameters are indications of synergistic effect existing between inhibitors [24,25]. S I value is found to be greater than one indicating the synergistic effect existing between Zn 2+ of concentrations 25 ppm and 50 ppm with various concentrations of HE.…”

Section: Synergism Parameter (S Imentioning

confidence: 94%

Inhibitory Mechanism of Carbon Steel Corrosion in Sea Water by an Aqueous Extract of Henna Leaves

Johnsirani¹,

Sathiyabama²,

Rajendran

et al. 2012

ISRN Corrosion

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The inhibition efficiency (IE) of an aqueous extract of henna leaves in controlling corrosion of carbon steel in seawater has been evaluated by weight-loss method. The weight loss study reveals that the formulation consisting of 8 mL of henna extract (HE) and 25 ppm of Zn 2+ has 94% inhibition efficiency in controlling corrosion of carbon steel in sea water. Polarization study reveals that HE and Zn 2+ system functions as mixed type inhibitor. AC impedance spectra reveal that protective film is formed on the metal surface. The nature of the metal surface has been analysed by FTIR spectra, SEM, and AFM analysis.

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“…Even countries like India is suffering badly due to this problem of corrosion . Several efforts have been made using corrosion-preventive practices, and the use of green corrosion inhibitors is one of them (Anuradha et al 2008;Mudhoo and Sharma 2010;Sharma et al 2010b;Sharma et al 2010c;Aboia and James 2010;Sharma et al 2009b;Sharma et al 2009c). On the other hand, the attractiveness and utilization of synthetic compounds as a corrosion inhibitor has come under severe criticism due to the harsh environmental regulations and toxic effects of synthetic compounds on human and animal life.…”

Section: Introductionmentioning

confidence: 99%

Potential of Azadirachta indica as a green corrosion inhibitor against mild steel, aluminum, and tin: a review

2015

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Azadirachta indica (AZI, commonly recognized as "Neem") is noteworthy both for its chemical and for its biological actions. It is one of the most fruitful sources of secondary metabolites in nature. To date, more than 300 natural products have been isolated from different sections of the tree, with new compounds added to the list every year. As a contribution to the current interest on green corrosion inhibitors, the present study aims at broadening the application of plant extracts for metallic corrosion inhibition by investigating the inhibiting properties of A. indica especially for mild steel, aluminum, and tin. In the present article, we discuss the potential of AZI extract as a corrosion inhibitor on metal surfaces, especially of mild steel, aluminum, and tin. The adsorption isotherm studies, chemical composition of AZI, effect of temperature on inhibition efficiency and computational analysis related with AZI adsorption on metals have also been discussed in detail. This work will further help in the understanding of the adsorption mechanism involved and hence inhibition effect of plant extract against metal corrosion.

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CORROSION INHIBITION OF CARBON STEEL IN LOW CHLORIDE MEDIA BY AN AQUEOUS EXTRACT OFHIBISCUS ROSA-SINENSIS LINN

Cited by 54 publications

References 9 publications

Corrosion Behaviour of Aluminium in the Presence of an Aqueous Extract of Hibiscus Rosa-sinensis

Corrosion Behaviour of Aluminium in the Presence of an Aqueous Extract of Hibiscus Rosa-sinensis

Inhibitory Mechanism of Carbon Steel Corrosion in Sea Water by an Aqueous Extract of Henna Leaves

Potential of Azadirachta indica as a green corrosion inhibitor against mild steel, aluminum, and tin: a review

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