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Phase equilibrium measurements of acoustically levitated squalane–CO 2 mixtures by Raman spectroscopy
Author(s) -
Baer Sebastian,
Esen Cemal,
Ostendorf Andreas
Publication year - 2014
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.4511
Subject(s) - raman spectroscopy , levitation , acoustic levitation , squalane , spectroscopy , phase (matter) , chemistry , analytical chemistry (journal) , work (physics) , autoclave , materials science , thermodynamics , optics , mechanical engineering , chromatography , physics , organic chemistry , quantum mechanics , magnet , engineering
This work describes the phase equilibrium measurements of acoustically levitated binary mixtures with concentration measurements using Raman spectroscopy without sample extraction of the autoclave. The levitator design is implemented in a Single‐Droplet Optical Cell for levitation processes under varying atmospheres. The advantages of acoustic levitation of small droplets under increased temperatures and pressure combined with spectroscopic applications like Raman spectroscopy enable novel experiments possibly relevant to the fields of chemical engineering. To the author's knowledge, this is the first use of Raman spectroscopy for phase equilibria investigations on acoustically levitated droplets under high pressure and temperature. The results show very good agreements with literature data. Copyright © 2014 John Wiley & Sons, Ltd.