几种天然染料的初步表征

African Journal of Pure and Applied Chemistry Pub Date : 2018-09-30 DOI:10.5897/ajpac2018.0767

Amarachukwu Ezeokonkwo Mercy, N. O. Sunday, Evelyn

{"title":"几种天然染料的初步表征","authors":"Amarachukwu Ezeokonkwo Mercy, N. O. Sunday, Evelyn","doi":"10.5897/ajpac2018.0767","DOIUrl":null,"url":null,"abstract":"A preliminary study on the chemical structure of dyes from Rothmannia hispidia, Pterocarpus osun and Terminalia superba was made using chemical tests, UV-visible and infrared spectroscopies. R. hispidia dye was found to contain an alkyl amino group (-NHR) and carbon-carbon double bond conjugated with a carbonyl (C = O) group, and also showed maximum absorption at 595 nm in the visible region. P. osun dye contains conjugated systems, hydroxyl (-OH) and amino (NHR) groups and showed maximum absorption at 506 nm in the visible region whereas T. superba dye is made up of conjugated system, nitro (NO2) and hydroxyl (-OH) groups. It showed maximum absorption at 478 nm in the visible region. \n \n Key words: Rothmannia hispidia, Pterocarpus osun, Terminalia superba, dyes, characterization.","PeriodicalId":7556,"journal":{"name":"African Journal of Pure and Applied Chemistry","volume":"56 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2018-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preliminary characterization of some natural dyes\",\"authors\":\"Amarachukwu Ezeokonkwo Mercy, N. O. Sunday, Evelyn\",\"doi\":\"10.5897/ajpac2018.0767\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A preliminary study on the chemical structure of dyes from Rothmannia hispidia, Pterocarpus osun and Terminalia superba was made using chemical tests, UV-visible and infrared spectroscopies. R. hispidia dye was found to contain an alkyl amino group (-NHR) and carbon-carbon double bond conjugated with a carbonyl (C = O) group, and also showed maximum absorption at 595 nm in the visible region. P. osun dye contains conjugated systems, hydroxyl (-OH) and amino (NHR) groups and showed maximum absorption at 506 nm in the visible region whereas T. superba dye is made up of conjugated system, nitro (NO2) and hydroxyl (-OH) groups. It showed maximum absorption at 478 nm in the visible region. \\n \\n Key words: Rothmannia hispidia, Pterocarpus osun, Terminalia superba, dyes, characterization.\",\"PeriodicalId\":7556,\"journal\":{\"name\":\"African Journal of Pure and Applied Chemistry\",\"volume\":\"56 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2018-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"African Journal of Pure and Applied Chemistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5897/ajpac2018.0767\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"African Journal of Pure and Applied Chemistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5897/ajpac2018.0767","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Preliminary characterization of some natural dyes

A preliminary study on the chemical structure of dyes from Rothmannia hispidia, Pterocarpus osun and Terminalia superba was made using chemical tests, UV-visible and infrared spectroscopies. R. hispidia dye was found to contain an alkyl amino group (-NHR) and carbon-carbon double bond conjugated with a carbonyl (C = O) group, and also showed maximum absorption at 595 nm in the visible region. P. osun dye contains conjugated systems, hydroxyl (-OH) and amino (NHR) groups and showed maximum absorption at 506 nm in the visible region whereas T. superba dye is made up of conjugated system, nitro (NO2) and hydroxyl (-OH) groups. It showed maximum absorption at 478 nm in the visible region. Key words: Rothmannia hispidia, Pterocarpus osun, Terminalia superba, dyes, characterization.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

African Journal of Pure and Applied Chemistry

自引率

0.00%

发文量