Determination of Excess Enthalpies and Effectof Association on Excess Enthalpies of BinaryMixtures Containing Alkanols

高铭书; 陈锦文; 李璠

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Determination of Excess Enthalpies and Effectof Association on Excess Enthalpies of BinaryMixtures Containing Alkanols

更新时间：2025-12-16

- Determination of Excess Enthalpies and Effectof Association on Excess Enthalpies of BinaryMixtures Containing Alkanols
- CIESC Journal Issue 4, (1991)
- 作者机构：
  
  天津大学化工系,天津大学化工系,天津大学化工系天津,天津,天津天津市公安部天津消防科学研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 August 1991，
  
  Published：25 August 1991
- 稿件说明：
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高铭书, 陈锦文, 李璠. Determination of Excess Enthalpies and Effectof Association on Excess Enthalpies of BinaryMixtures Containing Alkanols[J]. CIESC Journal, 1991, (4).
DOI：

高铭书, 陈锦文, 李璠. Determination of Excess Enthalpies and Effectof Association on Excess Enthalpies of BinaryMixtures Containing Alkanols[J]. CIESC Journal, 1991, (4). DOI：

摘要

用Calvet微量热仪测定了正辛烷—正辛醇、正辛烷—正庚醇、正辛烷-异丙醇及正壬烷-仲丁醇、正壬烷-异丙醇五个二元物系在297.95K、常压下的过量焓H~E数据.用纠正后的QCSM缔合溶液模型对烃-醇物系氢键缔合对过量焓的影响进行了研究.对AGSM基团贡献模型进行了改进

引入了一个“修正参数”.修正后的AGSM模型对短分子链的醇与烷烃的过量焓的预测结果有明显的改善.

Abstract

The excess enthalpies of five binary systems

n-octane-n-octanol

n-hep-tanol

i-propanol and n-nonane-2-butanol

i-propanol

were determined at 297.95K and under atmospheric pressure with the Calvet microcalorimeter. With the corrected QCSM associatioaal solution model

the effect of hydrogen bond association on excess enthalpies of alkane-alkanol binary systems was investigated. The AGSM group contribution model was modified

and the modified parameters for AGSM model was proposed. The prediction of excess enthalpies with modified AGSM model for the systems containing shorter chain alkanols is better than with AGSM model.

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