{"title":"基于 4-氨基水杨酸的新偶氮化合物的合成及抗腐蚀活性研究","authors":"Nour Abd Alrazzak","doi":"10.4314/bcse.v38i2.14","DOIUrl":null,"url":null,"abstract":"New azo dyes were prepared from 4-amino-2-hydroxy-benzoic acid in two steps; the first step includes preparation the diazonium salt. Then, diazonium compound coupled with different aromatic compounds containing donating groups (orcinol, 2,6-dimethylphenol, hydroquinone, catechol, 1,2,4-triazole, 2-methyl-naphthol and 4-toluidine, respectively). The physical properties of synthesized compounds were studied like melting point and solubility. The target molecules were characterized using FTIR, NMR and CHNS techniques. The activity of the compounds 1, 3 and 5 as anticorrosion on carbon steel in 0.5 M HCl solution was studied using weight loss method at different times and two concentrations (0.003 M, 0.005 M) of inhibitors at 298 K. Compound 5 showed more inhibition efficiency and less weight loss at different concentration in comparison with compound 1 and compound 3. \nKEY WORDS: Azo dye, 4-Aminosalicylic acid, Diazonium salt, Anti-corrosion \nBull. Chem. Soc. Ethiop. 2024, 38(2), 473-479. \nDOI: https://dx.doi.org/10.4314/bcse.v38i2.14","PeriodicalId":9501,"journal":{"name":"Bulletin of the Chemical Society of Ethiopia","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis of new azo compounds based on 4-aminosalicylic acid and study anti-corrosive activity\",\"authors\":\"Nour Abd Alrazzak\",\"doi\":\"10.4314/bcse.v38i2.14\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"New azo dyes were prepared from 4-amino-2-hydroxy-benzoic acid in two steps; the first step includes preparation the diazonium salt. Then, diazonium compound coupled with different aromatic compounds containing donating groups (orcinol, 2,6-dimethylphenol, hydroquinone, catechol, 1,2,4-triazole, 2-methyl-naphthol and 4-toluidine, respectively). The physical properties of synthesized compounds were studied like melting point and solubility. The target molecules were characterized using FTIR, NMR and CHNS techniques. The activity of the compounds 1, 3 and 5 as anticorrosion on carbon steel in 0.5 M HCl solution was studied using weight loss method at different times and two concentrations (0.003 M, 0.005 M) of inhibitors at 298 K. Compound 5 showed more inhibition efficiency and less weight loss at different concentration in comparison with compound 1 and compound 3. \\nKEY WORDS: Azo dye, 4-Aminosalicylic acid, Diazonium salt, Anti-corrosion \\nBull. Chem. Soc. Ethiop. 2024, 38(2), 473-479. \\nDOI: https://dx.doi.org/10.4314/bcse.v38i2.14\",\"PeriodicalId\":9501,\"journal\":{\"name\":\"Bulletin of the Chemical Society of Ethiopia\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-01-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of the Chemical Society of Ethiopia\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.4314/bcse.v38i2.14\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Chemical Society of Ethiopia","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.4314/bcse.v38i2.14","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis of new azo compounds based on 4-aminosalicylic acid and study anti-corrosive activity
New azo dyes were prepared from 4-amino-2-hydroxy-benzoic acid in two steps; the first step includes preparation the diazonium salt. Then, diazonium compound coupled with different aromatic compounds containing donating groups (orcinol, 2,6-dimethylphenol, hydroquinone, catechol, 1,2,4-triazole, 2-methyl-naphthol and 4-toluidine, respectively). The physical properties of synthesized compounds were studied like melting point and solubility. The target molecules were characterized using FTIR, NMR and CHNS techniques. The activity of the compounds 1, 3 and 5 as anticorrosion on carbon steel in 0.5 M HCl solution was studied using weight loss method at different times and two concentrations (0.003 M, 0.005 M) of inhibitors at 298 K. Compound 5 showed more inhibition efficiency and less weight loss at different concentration in comparison with compound 1 and compound 3.
KEY WORDS: Azo dye, 4-Aminosalicylic acid, Diazonium salt, Anti-corrosion
Bull. Chem. Soc. Ethiop. 2024, 38(2), 473-479.
DOI: https://dx.doi.org/10.4314/bcse.v38i2.14
期刊介绍:
The Bulletin of the Chemical Society of Ethiopia (BCSE) is a triannual publication of the Chemical Society of Ethiopia. The BCSE is an open access and peer reviewed journal. The BCSE invites contributions in any field of basic and applied chemistry.