Acta Chimica Sinica ›› 1995, Vol. 53 ›› Issue (1): 1-8.     Next Articles

Original Articles

醇类液体的热压力系数及内压

李继敏;朱良;史济斌;黑恩成;刘国杰   

  1. 华东理工大学化学系
  • 出版日期:1995-01-15 发布日期:1995-01-15

Thermal pressure coefficient and internal pressure for alcohol liquids

LI JIMIN;ZHU LIANG;SHI JIBIN;HEI ENCHENG;LIU GUOJIE   

  • Online:1995-01-15 Published:1995-01-15

The thermal pressure coefficients of liqs. for 1-pentanol, 1-hexanol, 1-heptanol, and 1-octanol have been measured over the temperature range of 25~85癈. It is found that their internal pressures don't vary much with temperature The modified van der Waals model is applied to the alcohol liqs. As nonassocg. liqs., their excluded vol. can also be expressed as a linear function of d. However, the ratio of the model parameters, B/A2 is not a constant and decreases speedily with increase of the no. of carbon atoms in the alcohol mol. This ratio may be considered as a measure of the ability of self-assocn. for alcs.

Key words: OCTANOL, PENTANOL, HEPTANOL, HEXANOL, INTRINSIC PRESSURE, ASSOCIATED LIQUID

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