物理化学学报 >> 1991, Vol. 7 >> Issue (05): 582-585.doi: 10.3866/PKU.WHXB19910513

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对-羟基苄叉丙二腈溶液在不同pH条件下吸收光谱的变化

汪鹏飞; 吴世康   

  1. 中国科学院感光化学研究所，北京 100101
  • 收稿日期:1990-04-04 修回日期:1990-09-12 发布日期:1991-10-15
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The Change of Absorption Spectrum of 4-Hydroxybenzylidene Malononitrile Solution Under Conditions of Different pH Value

Wang Peng-Fei; Wu Shi-Kang   

  1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101
  • Received:1990-04-04 Revised:1990-09-12 Published:1991-10-15
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关键词: 对-羟基苄叉丙二腈, 质子平衡, 非水介质中的酸性指示剂

Abstract: The absorption spectra of 4-hydroxybenzylidene malononitrile in different solvent systems have been studied in this work. It was found that this compound has a proton equilibrium under the different pH condition that results in a variation of absorption spectra observed. Thereby, the title compound is expected to be used as a new acidic indicator in nonaqueous media.

Key words: 4-Hydroxybenzylidene malononitrile, Proton equlilibrium, Acidicindicator in nonaqueous media