The Solubility of Argon in Aqueous Solutions of a Complex-Ion Electrolyte

被引：6
|
作者：
Masterton, William L. [1 ]
Polizzotti, David [1 ]
Welles, Harry [1 ]
机构：
[1] Univ Connecticut, Dept Chem, Storrs, CT 06268 USA
来源：
JOURNAL OF SOLUTION CHEMISTRY | 1973年 / 2卷 / 04期
基金：
美国国家科学基金会;
关键词：
Argon; t-[Co(en)(2)NCSCl]Br; gas solubility; complex-ion electrolyte; salt effect; scaled-particle theory; ion radius; partial molal volume; Setschenow parameter;
D O I：
10.1007/BF00713254
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
From measurements of the solubility of argon in aqueous solutions of the complexion electrolyte t-[Co(en)(2)NCSCI]Br at 25 degrees C the Setschenow parameter for this system is found to be +0.33(6). Using the scaled-particle theory of the salt effect with this value of k(s) and the Waddington crystal radius of the Br(-) ion, 1.98 angstrom, the radius of the complex cation is calculated to be 3.71. angstrom. This value is in reasonably good agreement with that estimated from scale models of the t-[Co(en)(2)NCSCl](+) cation, about 3.9 angstrom. It is somewhat larger than the radius calculated from various semiempirical equations relating the molal volume of an ion at infinite dilution to its radius; values of r obtained in this manner range from 3.32 to 3.66 angstrom.
引用
收藏
页码：417 / 423
页数：7
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