Acta Chimica Sinica ›› 2004, Vol. 62 ›› Issue (10): 998-1002. Previous Articles     Next Articles

异丙醇-水体系中分子间相互作用对萘迁移热力学性质的影响

周保学1,2, 蔡伟民1,2, 何争光1, 蔡俊1, 邹立壮3   

  1. 1. 上海交通大学环境科学与工程学院, 上海, 200240;
    2. 哈尔滨工业大学, 哈尔滨, 150001;
    3. 中国矿业大学, 北京, 化学与环境工程学院, 北京, 100083
  • 投稿日期:2003-09-15 修回日期:2004-01-10 发布日期:2014-02-17
  • 通讯作者: 蔡伟民,E-mail:wmcai@sjtu.edu.cn E-mail:wmcai@sjtu.edu.cn
  • 基金资助:
    中国博士后科学基金(中博基[2002]11号)资助项目.

Effect of Intermolecular Interactions on the Thermodynamic Properties of Transfer of Naphthalene in Water-Isopropyl Alcohol Solutions

ZHOU Bao-Xue1,2, CAI Wei-Min1,2, HE Zheng-Guang1, CAI Jun1, ZOU Li-Zhuang3   

  1. 1. Shool of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240;
    2. Harbin Institute of Technology, Harbin 150001;
    3. School of Chemical and Environmental Engineering, China University of Mining and Technology, Beijing 100083
  • Received:2003-09-15 Revised:2004-01-10 Published:2014-02-17

Standard thermodynamic functions of transfer of naphthalene from water to H2O-isopropyl alcohol (IPA) mixtures have been determined. Standard free energies of transfer for naphthalene showed a complex decreasing tendency with the increasing of x(IPA), and the standard entropy and enthalpy of transfer exhibited a change of double peak curves with x (IPA). This illustrated that the microcosmic structures of a series of mixed solvents of H2O-IPA underwent a variable process from relative order to relative disorder and then from relative disorder to relative order, and back to relative disorder again, then up to relative order. The results show that there is a relatively ordered structure near x (IPA)=0.08 in H2O-IPA solutions besides the existence of a clathrate structure in the water-rich region.

Key words: naphthalene, isopropyl alcohol, thermodynamic function of transfer, intermolecular interaction