DETERMINATION OF ACTIVITY-COEFFICIENTS VIA MICRODROPLET EVAPORATION EXPERIMENTS

被引：21

作者：

ALLEN, TM ^{[1
]}

TAFLIN, DC ^{[1
]}

DAVIS, EJ ^{[1
]}

机构：

[1] UNIV WASHINGTON,DEPT CHEM ENGN,BF-10,SEATTLE,WA 98195

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1990年 / 29卷 / 04期

关键词：

D O I：

10.1021/ie00100a030

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

It is demonstrated that activity coefficients of binary miscible solutions can be determined by means of microdroplet evaporation experiments in which a microdroplet is suspended in an electrodynamic balance. Weight loss and light-scattering measurements were used to determine the size and composition as functions of time. The light-scattering measurements include phase functions (scattering intensity as a function of the angle) and optical resonance spectra. The latter are extremely sensitive to the size and refractive index of the microdroplet. The microdroplet technique was applied to binary pairs consisting of 1-bromododecane, 1,8-dibromooctane, hexadecane, and heptadecane to obtain the activity coefficients of each component from the data. These results are compared with application of the Gibbs-Duhem equation to test the thermodynamic consistency of the experimental results. © 1990, American Chemical Society. All rights reserved.

引用

页码：682 / 690

页数：9

共 31 条

[1] OBSERVATION OF RESONANCES IN RADIATION PRESSURE ON DIELECTRIC SPHERES [J].