Acta Chimica Sinica ›› 1990, Vol. 48 ›› Issue (1): 28-32. Previous Articles     Next Articles

Original Articles

硝基苯甲酸在水-乙醇混合溶剂中的电离热力学

章莘;林瑞森;宗汉兴;严文兴   

  1. 浙江大学化学系
  • 发布日期:1990-01-15

Ionization thermodynamics of nitrobenzoic acids in water-ethanol mixtures at 25℃

ZHANG SHEN;LIN RUISEN;ZONG HANXING;YAN WENXING   

  • Published:1990-01-15

The ionization enthalpies of p-, m- and o-Nitrobenzoic acids have been measured at 25癈 in water-ethanol mixtures ranging from pure water up to 80% ethanol vol. fraction. The ionization entropies are calculated The different results obtained for the three acids are explained by taking into account the different effects displayed on the solute-solvent interactions by the nitro group at the various positions on the aromatic ring.

Key words: AQUEOUS SOLUTION, ETHANOL, THERMODYNAMIC PROPERTIES, NITROBENZENE P, BENZENECARBOXYLIC ACID P, IONIZATION, ENTROPY, STERIC EFFECT

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