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Spectroscopic study of water-NaCl-benzene mixtures at high temperatures and pressures
| Title: | Spectroscopic study of water-NaCl-benzene mixtures at high temperatures and pressures |
| Authors: | Ohya, Tomoyuki Browse this author | | Kitagawa, Masaaki Browse this author | | Jin, Yusuke Browse this author | | Ikawa, Shun-ichi4 Browse this author |
| Authors(alt): | 井川, 駿一4 |
| Issue Date: | 2005 |
| Publisher: | American Institute of Physics |
| Journal Title: | Journal of Chemical Physics |
| Volume: | 123 |
| Issue: | 214504 |
| Start Page: | 1 |
| End Page: | 6 |
| Publisher DOI: | 10.1063/1.2131061 |
| PMID: | 16356054 |
| Abstract: | Near-infrared and ultraviolet spectra of water-NaCl-benzene mixtures have been measured in the 473–573 K and 100–400 bar range and 373–498 K and 50–300 bar range, respectively. Concentrations of water in the benzene-rich phase and benzene in the water-rich phase were estimated from integrated intensities of the absorption bands. It is found that addition of NaCl in the aqueous phase suppresses transfer of water into the benzene-rich phase, and the relative decrease in water solubility in benzene exhibits good correlation with an increase in density of the aqueous NaCl solution relative to that of neat water. The salting-out constant for the water-NaCl-benzene system, which is estimated from a relative decrease in benzene solubility in the aqueous phase by addition of sodium chloride, increases significantly with increasing temperature. It is suggested that the effect of sodium chloride on the water-benzene mutual solubilities can be explained by ion-induced electrostriction of the aqueous phase. |
| Rights: | Copyright © 2005 American Institute of Physics |
| Relation: | http://www.aip.org/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/1392 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 井川 駿一
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