The inhibition activity of ascorbic acid towards corrosion of steel in alkaline media containing chloride ions
The activity of ascorbic acid towards steel corrosion in saturated Ca(OH) 2 solution containing chloride ions was investigated in this study. Concentration and time dependence of the protective properties of the passive film were acquired by electrochemical impedance spectroscopy. The best inhibitiv...
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| Veröffentlicht in: | Corrosion science 2008-09, Vol.50 (9), p.2705-2709 |
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| creator | Valek, L. Martinez, S. Mikulić, D. Brnardić, I. |
| description | The activity of ascorbic acid towards steel corrosion in saturated Ca(OH)
2 solution containing chloride ions was investigated in this study. Concentration and time dependence of the protective properties of the passive film were acquired by electrochemical impedance spectroscopy. The best inhibitive performance, i.e. the longest pitting initiation time was obtained in the presence of 10
−3
M ascorbic acid, while both lower and higher concentrations showed shortening of the pitting-free period. The overall behaviour of ascorbic acid was attributed to its ability to form chelates of various solubility having various metal/ligand ratios and oxidation states of the chelated iron. The assumption of ascorbic acid assisted reductive dissolution of the passive layer at higher inhibitor concentrations was confirmed by cyclic voltammetry and ATR FTIR spectroscopy. It is proposed that the overall inhibitive effect at lower concentrations is due to the formation of insoluble surface chelates and the effective blocking of the Cl
− adsorption at the surface of passive film. A pronounced inhibitive effect observed after the pitting had initiated was ascribed to the formation of a resistive film at the pitted area. |
| doi_str_mv | 10.1016/j.corsci.2008.06.018 |
| format | Article |
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2 solution containing chloride ions was investigated in this study. Concentration and time dependence of the protective properties of the passive film were acquired by electrochemical impedance spectroscopy. The best inhibitive performance, i.e. the longest pitting initiation time was obtained in the presence of 10
−3
M ascorbic acid, while both lower and higher concentrations showed shortening of the pitting-free period. The overall behaviour of ascorbic acid was attributed to its ability to form chelates of various solubility having various metal/ligand ratios and oxidation states of the chelated iron. The assumption of ascorbic acid assisted reductive dissolution of the passive layer at higher inhibitor concentrations was confirmed by cyclic voltammetry and ATR FTIR spectroscopy. It is proposed that the overall inhibitive effect at lower concentrations is due to the formation of insoluble surface chelates and the effective blocking of the Cl
− adsorption at the surface of passive film. A pronounced inhibitive effect observed after the pitting had initiated was ascribed to the formation of a resistive film at the pitted area.</description><identifier>ISSN: 0010-938X</identifier><identifier>EISSN: 1879-0496</identifier><identifier>DOI: 10.1016/j.corsci.2008.06.018</identifier><identifier>CODEN: CRRSAA</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>A. Steel ; Applied sciences ; B. EIS ; C. Inhibition ; C. Pitting corrosion ; Corrosion ; Corrosion environments ; Exact sciences and technology ; Metals. Metallurgy</subject><ispartof>Corrosion science, 2008-09, Vol.50 (9), p.2705-2709</ispartof><rights>2008 Elsevier Ltd</rights><rights>2009 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c367t-8761194dd00a9eb76dd28e16a71f42a4d3eb32813b8cd9dfbb4e877b67d5ad943</citedby><cites>FETCH-LOGICAL-c367t-8761194dd00a9eb76dd28e16a71f42a4d3eb32813b8cd9dfbb4e877b67d5ad943</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0010938X08002242$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=20702287$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Valek, L.</creatorcontrib><creatorcontrib>Martinez, S.</creatorcontrib><creatorcontrib>Mikulić, D.</creatorcontrib><creatorcontrib>Brnardić, I.</creatorcontrib><title>The inhibition activity of ascorbic acid towards corrosion of steel in alkaline media containing chloride ions</title><title>Corrosion science</title><description>The activity of ascorbic acid towards steel corrosion in saturated Ca(OH)
2 solution containing chloride ions was investigated in this study. Concentration and time dependence of the protective properties of the passive film were acquired by electrochemical impedance spectroscopy. The best inhibitive performance, i.e. the longest pitting initiation time was obtained in the presence of 10
−3
M ascorbic acid, while both lower and higher concentrations showed shortening of the pitting-free period. The overall behaviour of ascorbic acid was attributed to its ability to form chelates of various solubility having various metal/ligand ratios and oxidation states of the chelated iron. The assumption of ascorbic acid assisted reductive dissolution of the passive layer at higher inhibitor concentrations was confirmed by cyclic voltammetry and ATR FTIR spectroscopy. It is proposed that the overall inhibitive effect at lower concentrations is due to the formation of insoluble surface chelates and the effective blocking of the Cl
− adsorption at the surface of passive film. A pronounced inhibitive effect observed after the pitting had initiated was ascribed to the formation of a resistive film at the pitted area.</description><subject>A. Steel</subject><subject>Applied sciences</subject><subject>B. EIS</subject><subject>C. Inhibition</subject><subject>C. Pitting corrosion</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Exact sciences and technology</subject><subject>Metals. Metallurgy</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kD1rHDEQhoWJwRc7_yCFmqTbzUi7lrRNIJh8gcGNDe6EVprNzWVPciTZxv8-Os6kTDUwPO87zMPYewG9AKE-7XqfcvHUSwDTg-pBmBO2EUZPHYyTesM2AAK6aTD3Z-xtKTsAkG2zYfF2i5zilmaqlCJ3vtIT1ReeFu5Kq53JtyUFXtOzy6HwtsupHNiGlIq4tjx362-3UkS-x0CuQbE6ihR_cb9dU6bQrqRYLtjp4taC717nObv79vX26kd3ffP959WX684PStfOaCXENIYA4CactQpBGhTKabGM0o1hwHmQRgyz8WEKyzyPaLSelQ6XLkzjcM4-HnsfcvrziKXaPRWP6-oipsdih0sp9GBkA8cj6NtTJeNiHzLtXX6xAuxBrt3Zo1x7kGtB2Sa3xT689jdJbl2yi57Kv6wEDVIa3bjPRw7bs0-E2bYmjL5JyuirDYn-f-gvRC6UHg</recordid><startdate>20080901</startdate><enddate>20080901</enddate><creator>Valek, L.</creator><creator>Martinez, S.</creator><creator>Mikulić, D.</creator><creator>Brnardić, I.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20080901</creationdate><title>The inhibition activity of ascorbic acid towards corrosion of steel in alkaline media containing chloride ions</title><author>Valek, L. ; Martinez, S. ; Mikulić, D. ; Brnardić, I.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c367t-8761194dd00a9eb76dd28e16a71f42a4d3eb32813b8cd9dfbb4e877b67d5ad943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>A. Steel</topic><topic>Applied sciences</topic><topic>B. EIS</topic><topic>C. Inhibition</topic><topic>C. Pitting corrosion</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Exact sciences and technology</topic><topic>Metals. Metallurgy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Valek, L.</creatorcontrib><creatorcontrib>Martinez, S.</creatorcontrib><creatorcontrib>Mikulić, D.</creatorcontrib><creatorcontrib>Brnardić, I.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Valek, L.</au><au>Martinez, S.</au><au>Mikulić, D.</au><au>Brnardić, I.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The inhibition activity of ascorbic acid towards corrosion of steel in alkaline media containing chloride ions</atitle><jtitle>Corrosion science</jtitle><date>2008-09-01</date><risdate>2008</risdate><volume>50</volume><issue>9</issue><spage>2705</spage><epage>2709</epage><pages>2705-2709</pages><issn>0010-938X</issn><eissn>1879-0496</eissn><coden>CRRSAA</coden><abstract>The activity of ascorbic acid towards steel corrosion in saturated Ca(OH)
2 solution containing chloride ions was investigated in this study. Concentration and time dependence of the protective properties of the passive film were acquired by electrochemical impedance spectroscopy. The best inhibitive performance, i.e. the longest pitting initiation time was obtained in the presence of 10
−3
M ascorbic acid, while both lower and higher concentrations showed shortening of the pitting-free period. The overall behaviour of ascorbic acid was attributed to its ability to form chelates of various solubility having various metal/ligand ratios and oxidation states of the chelated iron. The assumption of ascorbic acid assisted reductive dissolution of the passive layer at higher inhibitor concentrations was confirmed by cyclic voltammetry and ATR FTIR spectroscopy. It is proposed that the overall inhibitive effect at lower concentrations is due to the formation of insoluble surface chelates and the effective blocking of the Cl
− adsorption at the surface of passive film. A pronounced inhibitive effect observed after the pitting had initiated was ascribed to the formation of a resistive film at the pitted area.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2008.06.018</doi><tpages>5</tpages></addata></record> |
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| ispartof | Corrosion science, 2008-09, Vol.50 (9), p.2705-2709 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | A. Steel Applied sciences B. EIS C. Inhibition C. Pitting corrosion Corrosion Corrosion environments Exact sciences and technology Metals. Metallurgy |
| title | The inhibition activity of ascorbic acid towards corrosion of steel in alkaline media containing chloride ions |
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