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TRANSFER FREE-ENERGIES OF SOME IONS FROM WATER TO DIMETHYLSULFOXIDE-WATER AND UREA-WATER MIXTURES
被引：38
|作者：
KUNDU, KK
DAS, AK
机构：
[1] Physical Chemistry Laboratories, Jadavpur University, Calcutta
关键词：
aqueous solvent mixtures;
dimethylsulfoxide;
Free energies of transfer;
ion-solvent interactions;
reference electrolyte (tetraphenylarsonium tetraphenylboride) assumption;
urea;
D O I：
10.1007/BF00650743
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：
The standard free energies of transfer (ΔGto) of some electrolytes from water to aqueous mixtures of dimethylsulfoxide (DMSO) and of urea have been split into the contribution from individual ions by use of the reference electrolyte Ph4AsBPh4 (RE), where Ph=phenyl. For each of the solvents, ΔGto(Ph4AsBPh4) was determined from the solubility products of the salts KBPh4, Ph4AsPi, and KPi, where Pi=picrate ion. The observed ΔGto(i) values for the individual ions are strikingly different from the corresponding values obtained by the simultaneous extrapolation (SE) procedure reported earlier. © 1979 Plenum Publishing Corporation.
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页码：259 / 265
页数：7
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