| 精苯酐中微量杂质分析研究 |
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| 引用本文： | 余鼎章,孙帼珍.精苯酐中微量杂质分析研究[J].分析测试学报,1991(5). |
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| 作者姓名： | 余鼎章 孙帼珍 |
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| 作者单位： | 武汉大学分析测试中心
(余鼎章)，化工部沈阳化工研究院(孙帼珍) |
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| 摘 要： | 本文报道采用萃取、层析分离和红外光谱、质谱等鉴定,同国外样品对比,发现精苯酐中的主要杂质有邻苯二甲酰亚胺,苯二甲酸,苯甲酸,邻苯二甲酸单丁酯,邻苯二甲酸单乙酯,棕(木吕)酸,硬酯酸,1,4-萘醌和6,11-二羟基萘茚醌等。而造成精苯酐在浓硫酸中发绿光的主要原因是含较大量的邻苯二甲酰亚胺。
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| 关 键 词： | 精苯酐 微量杂质 分析 |
Analysis of Micro-impurites in Refined phthalic Anhydride |
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| Yu Dingzhang,Sun Guozhen Analytical and Testing Centre,Wuhan University, Shenyang Institute of Chemical Industry,Ministry of Chemical Industry.Analysis of Micro-impurites in Refined phthalic Anhydride[J].Journal of Instrumental Analysis,1991(5). |
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| Authors: | Yu Dingzhang Sun Guozhen Analytical and Testing Centre Wuhan University Shenyang Institute of Chemical Industry Ministry of Chemical Industry |
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| Institution: | Yu Dingzhang,Sun Guozhen Analytical and Testing Centre,Wuhan University,430072 Shenyang Institute of Chemical Industry,Ministry of Chemical Industry,110021 |
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| Abstract: | By means of extraction and chromatographic separation as well as infrared spectrometricand mass spectrometric detection, it was found that phthalic dicarboximide, phthalic acid,benzoic acid. monobutyl phthalate, monoetnyl phthalate, palmitic acid, stearic acid, 1, 4 naph-thoquinone, and 6, 11-dihydroxy naphthoindene are the main impurities in refined phthalicanhydride. o-phthalic dicarboximide is responsible for the greenish light when refined phthalicanhydride is dissolved in concentrated H_2SO_4. |
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| Keywords: | Fine phthalic anhydride micro-impurity analysis |
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