HIGH-PRESSURE NAPHTHALENE-XENON PHASE BEHAVIOR.

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作者
McHugh, Mark A. [1 ]
Watkins, James J. [1 ]
Doyle, Brian T. [1 ]
Krukonis, Val J. [1 ]
机构
[1] Johns Hopkins Univ, Baltimore, MD,, USA, Johns Hopkins Univ, Baltimore, MD, USA
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关键词
EQUATIONS OF STATE - Gases - XENON - Solubility;
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摘要
The high-pressure phase behavior of the naphthalene-xenon system is experimentally determined. Naphthalene solubility isotherms are obtained at 34. 9, 40. 0, and 45. 0 degree C over a range of pressures from 105 to 270 bar. The pressure-temperature projection of the solid-liquid-gas (SLG) line is obtained, and the upper critical end point (UCEP) is found at 46. 4 degree C, 136. 8 bar, and a naphthalene mole fraction of 0. 135. The location of the UCEP differs from a previously determined value; this discrepancy is attributed to differences in the experimental techniques used to obtain the UCEP. The phase diagram for the naphthalene-xenon system can be generated by using the Peng-Robinson and the Sanchez-Lacombe equations of state each with two mixture parameters fit to the LSG line.
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页码:1025 / 1033
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