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化学学报
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化学学报 ›› 2010, Vol. 68 ›› Issue (12): 1241-1246. 上一篇    下一篇

研究简报

二乙醇胺-N-甲基二乙醇胺-水溶液表面张力实验研究

付东*，钟智坤   

  1. 华北电力大学环境科学与工程学院 保定 071003
  • 投稿日期:2010-01-03 修回日期:2010-02-26 发布日期:2010-02-26
  • 通讯作者: 付东 E-mail:fudong@tsinghua.org.cn
  • 基金资助:

    二氧化碳-共聚物体系相平衡和成核性质研究;教育部新世纪优秀人才支持计划

Experimental Study on the Surface Tension of Diethanolamine- N-Methyldiethanolamine-Water Mixtures

FU Dong, ZHONG Zhi-Kun   

  1. School of Environmental Science and Engineering, North China Electric Power University, Baoding 071003
  • Received:2010-01-03 Revised:2010-02-26 Published:2010-02-26
  • Supported by:

    ; Program for New Century Excellent Talents in Universities of the Ministry of Education of China

PDF

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用ZBY-1全自动表面张力仪测定了288～333 K温度范围内, 二乙醇胺(Diethanolamine, DEA)、N-甲基二乙醇胺(N-methyldiethanolamine, MDEA)及其混合水溶液的表面张力, 并分析了混合溶液的表面熵和表面焓等热力学性质与醇胺浓度的关系.

关键词: 二乙醇胺, N-甲基二乙醇胺, 水溶液, 表面张力

In this work, the surface tensions of pure diethanolamine (DEA), pure N-methyldiethanolamine (MDEA), and DEA-MDEA-water mixtures from 288 to 333 K were measured by using an automatic surface tension-meter. The thermodynamic properties like surface enthalpy and surface entropy of DEA-MDEA- water mixtures were determined and their concentration dependence was analyzed.

Key words: diethanolamine, N-methyldiethanolamine, aqueous solution, surface tension