Mixing dynamics of diethyl ether and chloroform

被引：0
|
作者：
Kutsyk, A. M. [1 ]
Ilchenko, O. O. [2 ]
Nikonova, V. V. [1 ]
Obukhovsky, V. V. [1 ]
机构：
[1] Taras Shevchenko Natl Univ Kyiv, Dept Radio Phys Elect & Comp Syst, Kiev, Ukraine
[2] Tech Univ Denmark, Dept Hlth Technol, Lyngby, Denmark
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2021年 / 339卷
关键词：
Mixing; Mutual diffusion; Binary solution; FTIR spectroscopy; Multivariate curve resolution; MUTUAL DIFFUSION-COEFFICIENTS; COMPLEX-FORMATION; LIQUID-MIXTURES; BINARY; PREDICTION; MODEL;
D O I：
10.1016/j.molliq.2021.116687
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Mixing dynamics of liquid diethyl ether and chloroform were studied by time-resolved Fourier-transform infrared absorption spectroscopy in attenuated total reflectance mode (ATR-FTIR). An in situ experiment where chemicals were mixing in the vertical cell directly attached to the diamond ATR accessory was carried out. The data were analyzed by two-dimensional correlation spectroscopy (2D COS) and multivariate curve resolution (MCR). The analysis of ATR-FTIR spectra has shown that each species (diethyl ether and chloroform) exist in an unbound (free) state and bound state (as a part of the molecular complex). The concentration and spectral profiles of mixture components were obtained using MCR decomposition. A theory of nonlinear diffusion has been used to model the experimentally obtained concentration profiles. It has been shown that the theoretical concentration profiles are in good qualitative agreement with experimental ones. (C) 2021 Elsevier B.V. All rights reserved.
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页数：8
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