| 模糊集合理论在化学中的应用Ⅳ——百里酚酞-茜素黄R混合指示剂的研究 |
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| 引用本文： | 胡颜,李华样.模糊集合理论在化学中的应用Ⅳ——百里酚酞-茜素黄R混合指示剂的研究[J].广东海洋大学学报,1989(Z1). |
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| 作者姓名： | 胡颜 李华样 |
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| 作者单位： | 湛江水产学院基础部，湛江水产学院基础部 |
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| 摘 要： | 本文应用模糊集合理论和计算机研究百里酚酞-茜素黄R混合指示剂的变色现象。发现其变色存在滞后现象。讨论了产生滯后现象的原因。
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| 关 键 词： | 模糊集合 化学应用 指示剂 百里酚酞-茜素黄R |
The Application of Fuzzy Set Theory in Chemistry IV--The Study of Thymolphthalien-Alizarin Yellow R Mixed Indicator |
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| Hu Yan Li Huaxiang,Zhanjiang Fisheries College.The Application of Fuzzy Set Theory in Chemistry IV--The Study of Thymolphthalien-Alizarin Yellow R Mixed Indicator[J].Journal of Zhanjiang Ocean University,1989(Z1). |
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| Authors: | Hu Yan Li Huaxiang Zhanjiang Fisheries College |
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| Abstract: | The colour change of the thymolphthalein-alizarin yellow R mixed ind- icator is studied in this paper with the computer on the basis of the Fuzzy set theory. In the buffer systems NaHCO_3-Na_2CO_3, Na_2B_4O_7-Na_2CO_3, H_3BO_3 KCl-Na_2CO_3, the mixed indicator gives a gradually colour change rather than a sharp colour change as showed in chemical manuals. Only after a few hours, it gives a sharp and pronounced colour change. Therefore, in practice it is difficult that the mixed indicator is used to indicate titration end point, unless the sluggish phenomenon can be eliminated. |
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| Keywords: | Fuzzy Set Chemistry Indicator Thymolphthalien-Alizarin Yellow R |
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