Influence of essential onion oil on tin and chromium dissolution from tinplate

Grassino, Antonela Ninčević; Grabarić, Zorana; Pezzani, A.; Fasanaro, G.; Voi, A. Lo

doi:10.1016/j.fct.2009.04.003

Cited by 36 publications

(18 citation statements)

References 18 publications

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“…The protective action of EOO18 was compared with dioctyl sebacate oil, often used for food canning. The behaviour of these protective coatings applied on D11.2/2.8 g m −2 tinplate was measured using the electrochemical porosity test.…”

Section: Results and Discusionmentioning

confidence: 99%

“…The electrochemical galvanostatic method was used for the determination of tin and chromium coating masses in tinplate18 D11.2/2.8 g m −2 .…”

Section: Methodsmentioning

confidence: 99%

“…These compounds are cheap and have to be edible, but their application in the food canning industry has not been investigated sufficiently. In our previous work18 we proposed essential onion oil (EOO) as a potential inhibitor of tin and chromium dissolution from tinplate sheets.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion inhibition with different protective layers in tinplate cans for food preservation

et al. 2010

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Section: Results and Discusionmentioning

confidence: 99%

“…The electrochemical galvanostatic method was used for the determination of tin and chromium coating masses in tinplate18 D11.2/2.8 g m −2 .…”

Section: Methodsmentioning

confidence: 99%

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Corrosion inhibition with different protective layers in tinplate cans for food preservation

et al. 2010

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“…The FeSn 2 coating was found to contain a small amount of surface free tin which was removed electrochemically by applying a controlled anodic current density in a 1 M HCl electrolyte. 15,16 The final FeSn 2 coating weights were calculated as 0.37 g.m −2 and 1.6 g.m −2 using chronocoulometry. Polyvinyl butyral (PVB) and all other chemicals were obtained from Aldrich Chemical Co. and of analytical grade purity.…”

Section: Methodsmentioning

confidence: 99%

The Kinetics and Mechanism of Atmospheric Corrosion Occurring on Tin and Iron-Tin Intermetallic Coated Steels

Wint

Geary

McMurray

et al. 2015

J. Electrochem. Soc.

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This paper describes a systematic study into the initiation and propagation of cathodic delamination on pure iron, pure tin and industrially important tin and iron-tin intermetallic (FeSn and FeSn 2 ) coatings for packaging steels, as a function of coating weight. Cathodic disbondment rates for an organic lacquer overcoat applied to the various metallic coatings are determined using an in-situ scanning Kelvin probe technique. Cathodic disbondment was not observed on pure tin and was found to propagate at reduced rates on the FeSn and FeSn 2 intermetallic coatings, relative to pure iron. An explanation of these findings is given in terms of electrocatalytic activity of various metallic surfaces for the cathodic oxygen reduction reaction. It is shown that the relative susceptibility of Fe, Sn, FeSn and FeSn 2 to cathodic disbondment increases with decreasing cathodic overpotential and is independent of metallic coating weight. Tin is traditionally used for the corrosion protection of packaging steel. Conventional tinplate is typically produced by initially electrodepositing a porous layer of pure tin (∼2.8 g.m −2 -11.2 g.m −2 ) onto the cathodic steel substrate, as shown in Figure 1a, and heating above the melting point of tin (reflowing). [1][2][3] Reflowing causes the tin layer to become fully dense (bright tin) and also allows creation of partial or complete iron-tin intermetallic, typically FeSn 2 , as shown in Figure 1b [1][2][3] .Recently the increasing price of tin in the commodities market has resulted in a need to reduce the amount of tin used in tinplate materials (tin coating weight) whilst retaining adequate corrosion resistance. One approach to doing this has been to diffusion anneal the unflowed tin (<1g.m −2 ) in a reducing atmosphere at temperatures above 500 • C 4,5 in such a way that almost all (preferably 90-98%) 6 of the free tin is converted to an iron-tin (FeSn) intermetallic as shown in Figure 1c. It has previously been found that heating to these temperatures leads to increased tin diffusion to the substrate and formation of a continuous FeSn layer which is more uniform and dense than the conventional FeSn 2 layer. 4 The principal purpose of tin in tinplate packaging materials is to provide corrosion resistance. Furthermore, in modern packaging, corrosion resistance is enhanced by using tinplate in conjuction with an organic (laquer or laminate) overcoat. Consequently mechanisms of corrosion driven coating delamination are of particular concern. The aim of the current paper is to present a detailed study of the role of free tin and iron-tin intermetallic layers in resisting atmopheric corrosion, specifically cathodic disbondment, as it affects lacquer coated packaging material.During cathodic delamination the separation of the organic coating from the metal substrate is linked to the cathodic reduction of oxygen. Within the localized corrosion cell anodic metal dissolution located in the vicinity of the defect is coupled to the cathodic delamination front by a thin (<5 μm) gel like electrol...

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“…The inhibition effect of Zenthoxylum alatum extract on the corrosion of mild steel in aqueous Orthophosphonic acid was investigated. [19][20][21].In continuation of our work on development of green corrosion inhibitors [22][23], the present study investigates the inhibiting effect of Magnolia champaca flower extract on the corrosion of mild steel in 0.5 M H 2 SO 4 solution by weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods.…”

Section: Introductionmentioning

confidence: 99%

Magnolia Champaca- Flower Extracts As Corrosion Inhibitor For Mild Steel In Acid Medium

Kumar¹

2013

IOSRJEN

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-The corrosion inhibitive action of flower extracts of Magnolia champaca flower on mild steel corrosion in 0.5 M H 2 SO 4 solution was studied using weight loss method, potentiodynamic polarization and EIS measurements. The results obtained indicate that the extracts functioned as good inhibitors in 0.5 M H 2 SO 4 solution. Inhibition efficiency was found to increase with extract concentration. The adsorption of constituents in the plant extract on the surface of the metal is proposed for the inhibition behavior.

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Influence of essential onion oil on tin and chromium dissolution from tinplate

Cited by 36 publications

References 18 publications

Corrosion inhibition with different protective layers in tinplate cans for food preservation

Corrosion inhibition with different protective layers in tinplate cans for food preservation

The Kinetics and Mechanism of Atmospheric Corrosion Occurring on Tin and Iron-Tin Intermetallic Coated Steels

Magnolia Champaca- Flower Extracts As Corrosion Inhibitor For Mild Steel In Acid Medium

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