Publication: The study of hydrophobic hydration in supercritical water-methanol mixtures
Issued Date
2001-07-12
Resource Type
ISSN
10933263
Other identifier(s)
2-s2.0-0034951940
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Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Molecular Graphics and Modelling. Vol.19, No.5 (2001), 412-416
Suggested Citation
M. Kiselev, S. Noskov, Y. Puhovski, T. Kerdcharoen, S. Hannongbua The study of hydrophobic hydration in supercritical water-methanol mixtures. Journal of Molecular Graphics and Modelling. Vol.19, No.5 (2001), 412-416. doi:10.1016/S1093-3263(00)00100-5 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/26507
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Title
The study of hydrophobic hydration in supercritical water-methanol mixtures
Abstract
We investigated hydrophobic hydration and heat capacity (CV) of diluted aqueous solutions of methanol at supercritical region using molecular dynamics method. We performed simulations for several concentrations of methanol and densities of mixtures. Similar to that observed for ambient conditions, the 600 K solution containing 0.12 mole fraction of methanol at the density of 0.98 gm.cm-3yields the highest CV. The intermolecular structure between water and methanol molecules at this concentration was also found to be enhanced. Hydrophobic hydration, relative to ambient conditions, is diminished slightly at the concentration of Cvmaximum and diminishes drastically for the other concentrations. © 2001 Elsevier Science Inc.