利用红外振动光谱研究甲醇-乙酸甲酯共沸体系的微观结构
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何佶蔓, 白巧巧, 胡锦霞, 徐雨涵, 段奕奕, 边红涛
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Study on Microscopic Structure of Methanol-Methyl Acetate Azeotropic System by Infrared Spectroscopy
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Jiman He, Qiaoqiao Bai, Jinxia Hu, Yuhan Xu, Yiyi Duan, Hongtao Bian
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表1 甲醇和乙酸甲酯二元混合物中甲醇在不同摩尔比例下(XCH3OH)羰基伸缩振动的中心频率峰位置及对应的峰面积A
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| XCH3OH | A(1705 cm?1) | R2 | A(1730 cm?1) | R2 | A(1748 cm?1) | R2 | | 0.0 | – | – | – | – | 26. 2 ± 0.1 | 0.9971 | | 0.1 | – | – | – | – | 28.1 ± 0.1 | 0.9978 | | 0.2 | – | – | – | – | 29.8 ± 0.1 | 0.9942 | | 0.3 | – | - | 10.8 ± 0.8 | 0.9979 | 21.7 ± 0.1 | 0.9979 | | 0.4 | 2.5 ± 0.1 | 0.9984 | 13.4 ± 0.1 | 0.9984 | 22.3 ± 0.1 | 0.9984 | | 0.5 | 0.7 ± 0.1 | 0.9991 | 8.7 ± 0.1 | 0.9991 | 25.6 ± 0.1 | 0.9991 | | 0.6 | 2.3 ± 0.1 | 0.9991 | 16.7 ± 0.1 | 0.9991 | 20.7 ± 0.1 | 0.9991 | | 0.7 | 1.3 ± 0.1 | 0.9996 | 15.8 ± 0.1 | 0.9996 | 20.1 ± 0.1 | 0.9996 | | 0.8 | 3.0 ± 0.1 | 0.9996 | 23.0 ± 0.1 | 0.9996 | 17.8 ± 0.1 | 0.9996 | | 0.9 | 3.2 ± 0.1 | 0.9997 | 25.9 ± 0.1 | 0.9997 | 16.8 ± 0.1 | 0.9997 |
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