SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (11): 1811-1818.DOI: 10.1016/j.cjche.2015.08.006

• 化工热力学 • 上一篇    下一篇

Measurement and correlation of physical properties of aqueous solutions of tetrabutylammonium hydroxide, piperazine and their aqueous blends

Rizwan Safdar1, Abdul Aziz Omar1, Lukman B. Ismail2, Arhama Bari1, Bhajan Lal1   

  1. 1 Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610 Tronoh, Perak, Malaysia;
    2 School of Engineering and Physical Science, Heriot-Watt University Malaysia, Federal Territory of Putrajaya, 62100 Putrajaya, Malaysia
  • 收稿日期:2015-04-14 修回日期:2015-07-14 出版日期:2015-11-28 发布日期:2015-12-18
  • 通讯作者: Rizwan Safdar

Measurement and correlation of physical properties of aqueous solutions of tetrabutylammonium hydroxide, piperazine and their aqueous blends

Rizwan Safdar1, Abdul Aziz Omar1, Lukman B. Ismail2, Arhama Bari1, Bhajan Lal1   

  1. 1 Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 32610 Tronoh, Perak, Malaysia;
    2 School of Engineering and Physical Science, Heriot-Watt University Malaysia, Federal Territory of Putrajaya, 62100 Putrajaya, Malaysia
  • Received:2015-04-14 Revised:2015-07-14 Online:2015-11-28 Published:2015-12-18
  • Contact: Rizwan Safdar

摘要: The density, viscosity and refractive index of aqueous solutions of tetrabutylammoniumhydroxide (TBAOH), piperazine (PZ) and their aqueous blends are determined at several temperatures (303.15 to 333.15 K). All these measured physicochemical properties decreases with an increase in temperature. The density data is used to calculate the coefficient of thermal expansion and excess molar volume of all aqueous binary and ternary solutions. The coefficient of thermal expansion increases with increase in temperatures and concentrations. The negativity of excess molar volume for all the aqueous solution decreasedwith increase in temperature. Each physical property is correlated with temperature by least square method and the corresponding coefficients for each property are presented. The prediction values fromcorrelations for the physical properties are in good agreement with the experimental values.

关键词: Density, ionic liquids, Density, Viscosity, Refractive index

Abstract: The density, viscosity and refractive index of aqueous solutions of tetrabutylammoniumhydroxide (TBAOH), piperazine (PZ) and their aqueous blends are determined at several temperatures (303.15 to 333.15 K). All these measured physicochemical properties decreases with an increase in temperature. The density data is used to calculate the coefficient of thermal expansion and excess molar volume of all aqueous binary and ternary solutions. The coefficient of thermal expansion increases with increase in temperatures and concentrations. The negativity of excess molar volume for all the aqueous solution decreasedwith increase in temperature. Each physical property is correlated with temperature by least square method and the corresponding coefficients for each property are presented. The prediction values fromcorrelations for the physical properties are in good agreement with the experimental values.

Key words: Density, ionic liquids, Density, Viscosity, Refractive index