{"title":"钨酸钠- zn2 +- n -(磷甲甲基)亚氨基二乙酸体系在井水中协同作用的实现","authors":"S. Kanimozhi, S. Rajendran","doi":"10.2174/1876503300902010166","DOIUrl":null,"url":null,"abstract":"The aim of this present work is to study, the corrosion behavior of carbon steel in well water in the presence of sodium tungstate (ST)-Zn 2+ -N-(phosphenomethyl) iminodiaceticacid (NPMIDA) solutions. Electrochemical studies and FTIR spectral studies and weight loss study have been employed. It was found that the inhibition efficiency (IE) of ST (50 ppm)-Zn 2+ (10 ppm) was improved from 8% to 82% by the addition of 150 ppm of NPMIDA. The protective film consists of Fe 2+ -WO4 2, Fe 2+ -NPMIDA complex on anodic site and Zn(OH)2 complex at cathodic site. The NPMIDA-ST-Zn 2+ system increases linear polarization resistance value, decreases corrosion current, increases charge transfer resistance and decreases double layer capacitance value. Based on the above results a mechanism of corrosion inhibition is proposed.","PeriodicalId":420093,"journal":{"name":"The Open Corrosion Journal","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Realization of Synergism in Sodium Tungstate-Zn2+-N-(Phosphenomethyl) Iminodiaceticacid System in Well Water\",\"authors\":\"S. Kanimozhi, S. Rajendran\",\"doi\":\"10.2174/1876503300902010166\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The aim of this present work is to study, the corrosion behavior of carbon steel in well water in the presence of sodium tungstate (ST)-Zn 2+ -N-(phosphenomethyl) iminodiaceticacid (NPMIDA) solutions. Electrochemical studies and FTIR spectral studies and weight loss study have been employed. It was found that the inhibition efficiency (IE) of ST (50 ppm)-Zn 2+ (10 ppm) was improved from 8% to 82% by the addition of 150 ppm of NPMIDA. The protective film consists of Fe 2+ -WO4 2, Fe 2+ -NPMIDA complex on anodic site and Zn(OH)2 complex at cathodic site. The NPMIDA-ST-Zn 2+ system increases linear polarization resistance value, decreases corrosion current, increases charge transfer resistance and decreases double layer capacitance value. Based on the above results a mechanism of corrosion inhibition is proposed.\",\"PeriodicalId\":420093,\"journal\":{\"name\":\"The Open Corrosion Journal\",\"volume\":\"5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-05-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Open Corrosion Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2174/1876503300902010166\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Open Corrosion Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/1876503300902010166","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Realization of Synergism in Sodium Tungstate-Zn2+-N-(Phosphenomethyl) Iminodiaceticacid System in Well Water
The aim of this present work is to study, the corrosion behavior of carbon steel in well water in the presence of sodium tungstate (ST)-Zn 2+ -N-(phosphenomethyl) iminodiaceticacid (NPMIDA) solutions. Electrochemical studies and FTIR spectral studies and weight loss study have been employed. It was found that the inhibition efficiency (IE) of ST (50 ppm)-Zn 2+ (10 ppm) was improved from 8% to 82% by the addition of 150 ppm of NPMIDA. The protective film consists of Fe 2+ -WO4 2, Fe 2+ -NPMIDA complex on anodic site and Zn(OH)2 complex at cathodic site. The NPMIDA-ST-Zn 2+ system increases linear polarization resistance value, decreases corrosion current, increases charge transfer resistance and decreases double layer capacitance value. Based on the above results a mechanism of corrosion inhibition is proposed.
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