Abstract
High pressure NMR has proven itself to be a valuable technique for the study of supercritical fluid solutions. In this manuscript, we describe the extension of high pressure NMR to the investigation of the phase behavior for two binary solvent systems; ethylene-methanol and propane-methanol. The phase behavior was investigated as a function of pressure and temperature, with the molar composition of both phases being determined simultaneously, in situ, in a high pressure capillary NMR cell. The hydrogen bonding behavior of the alcohol in both phases determined in these experiments, provides important physicochemical information regarding solvent interactions occurring in both the liquid and vapor phase. High pressure NMR proves to be an efficient method for obtaining vapor liquid equilibrium data and critical conditions of binary solvent systems. This methodology should also be applicable to ternary systems as well as to more extreme solvent systems, such as, supercritical water.
| Original language | English |
|---|---|
| Pages (from-to) | 9-16 |
| Number of pages | 8 |
| Journal | Journal of Supercritical Fluids |
| Volume | 14 |
| Issue number | 1 |
| Publication status | Published - Oct 1 1998 |
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Keywords
- Binary supercritical fluids
- High pressure NMR
- Vapor-liquid equilibrium
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
The use of high pressure NMR for the determination of phase behavior for select binary solvent systems. / Yonker, C. R.; Linehan, John; Fulton, J. L.
In: Journal of Supercritical Fluids, Vol. 14, No. 1, 01.10.1998, p. 9-16.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The use of high pressure NMR for the determination of phase behavior for select binary solvent systems
AU - Yonker, C. R.
AU - Linehan, John
AU - Fulton, J. L.
PY - 1998/10/1
Y1 - 1998/10/1
N2 - High pressure NMR has proven itself to be a valuable technique for the study of supercritical fluid solutions. In this manuscript, we describe the extension of high pressure NMR to the investigation of the phase behavior for two binary solvent systems; ethylene-methanol and propane-methanol. The phase behavior was investigated as a function of pressure and temperature, with the molar composition of both phases being determined simultaneously, in situ, in a high pressure capillary NMR cell. The hydrogen bonding behavior of the alcohol in both phases determined in these experiments, provides important physicochemical information regarding solvent interactions occurring in both the liquid and vapor phase. High pressure NMR proves to be an efficient method for obtaining vapor liquid equilibrium data and critical conditions of binary solvent systems. This methodology should also be applicable to ternary systems as well as to more extreme solvent systems, such as, supercritical water.
AB - High pressure NMR has proven itself to be a valuable technique for the study of supercritical fluid solutions. In this manuscript, we describe the extension of high pressure NMR to the investigation of the phase behavior for two binary solvent systems; ethylene-methanol and propane-methanol. The phase behavior was investigated as a function of pressure and temperature, with the molar composition of both phases being determined simultaneously, in situ, in a high pressure capillary NMR cell. The hydrogen bonding behavior of the alcohol in both phases determined in these experiments, provides important physicochemical information regarding solvent interactions occurring in both the liquid and vapor phase. High pressure NMR proves to be an efficient method for obtaining vapor liquid equilibrium data and critical conditions of binary solvent systems. This methodology should also be applicable to ternary systems as well as to more extreme solvent systems, such as, supercritical water.
KW - Binary supercritical fluids
KW - High pressure NMR
KW - Vapor-liquid equilibrium
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UR - http://www.scopus.com/inward/citedby.url?scp=0002849497&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0002849497
VL - 14
SP - 9
EP - 16
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
SN - 0896-8446
IS - 1
ER -