{"title":"Benzotriazole as a corrosion inhibitor for brass","authors":"S.H. Sanad, H. Abbas, A.A. Ismail, K.M. El-Sobki","doi":"10.1016/0376-4583(85)90046-9","DOIUrl":null,"url":null,"abstract":"<div><p>The effect of benzotriazole (BTA) on the corrosion of brass in 0.1 N HCl, 0.1 N H<sub>2</sub>SO<sub>4</sub> and 0.1 N NH<sub>4</sub>Cl was studied by means of immersion tests and galvanostatic measurements. BTA showed a good inhibition effect in some corrosive media. The percentage inhibition in 0.1 N HCl solution was found to increase with increasing BTA concentration. In contrast, the percentage inhibition in 0.1 N H<sub>2</sub>SO<sub>4</sub> was inversely proportional to the BTA concentration. The highest inhibition efficiency was obtained in 0.1 N NH<sub>4</sub>Cl. The role of BTA as an inhibitor for brass was explained in terms of the chemisorption of BTA molecules at some active sites on brass surfaces.</p></div>","PeriodicalId":22037,"journal":{"name":"Surface Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1985-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0376-4583(85)90046-9","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Technology","FirstCategoryId":"1087","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0376458385900469","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
The effect of benzotriazole (BTA) on the corrosion of brass in 0.1 N HCl, 0.1 N H2SO4 and 0.1 N NH4Cl was studied by means of immersion tests and galvanostatic measurements. BTA showed a good inhibition effect in some corrosive media. The percentage inhibition in 0.1 N HCl solution was found to increase with increasing BTA concentration. In contrast, the percentage inhibition in 0.1 N H2SO4 was inversely proportional to the BTA concentration. The highest inhibition efficiency was obtained in 0.1 N NH4Cl. The role of BTA as an inhibitor for brass was explained in terms of the chemisorption of BTA molecules at some active sites on brass surfaces.
通过浸渍试验和恒流测量，研究了苯并三唑(BTA)在0.1 N HCl、0.1 N H2SO4和0.1 N NH4Cl中对黄铜腐蚀的影响。BTA在某些腐蚀性介质中表现出良好的缓蚀效果。在0.1 N HCl溶液中，抑制率随BTA浓度的增加而增加。相反，0.1 N H2SO4的抑制率与BTA浓度成反比。在0.1 N NH4Cl溶液中抑菌率最高。BTA分子在黄铜表面某些活性位点的化学吸附解释了BTA作为黄铜缓蚀剂的作用。
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