Solubility and Thermodynamics of Solvation of Krypton in Aqueous-Methanol Solutions of Urea at 101325 Pa and 278–318 K

被引：0
|
作者：
V. K. Abrosimov
E. V. Ivanov
E. Yu. Lebedeva
机构：
[1] Russian Academy of Sciences,Institute of Solution Chemistry
来源：
Russian Journal of General Chemistry | 2005年 / 75卷
关键词：
Urea; Mole Fraction; Krypton; Concentration Region; Considerable Decrease;
D O I：
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中图分类号：
学科分类号：
摘要：
The solubility of krypton in the liquid system H2O-CH3OH-CO(NH2)2 was measured at 101 325 Pa and 278.15–318.15 K (10 K step) in the whole range of compositions of the mixed aqueous-methanol solvent at the urea content of up to 1.5 solvomolality units (mole fraction 0.0263). The temperature dependence of the Sechenov parameter of the solubility of the noble gas exhibits an inversion in the region of equimolar composition of the water-methanol mixture. A considerable decrease in the salting-out of the gas with urea in this concentration region is due to loosening of the solvation shell of urea.
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页码：1010 / 1016
页数：6
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