Hydration numbers of perchloric acid: Estimation method based on the Raoult law

被引：10

作者：

Karelin, A., I ^{[1
]}

Tarasenko, V. A. ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Problems Chem Phys, Acad Semenov Ave 1, Chernogolovka 142432, Moscow Region, Russia

[2] Russian Acad Sci, Talrose Inst Energy Problems Chem Phys Branch, Acad Semenov Ave 1, Chernogolovka 142432, Moscow Region, Russia

来源：

CHEMICAL PHYSICS | 2019年 / 523卷

关键词：

Perchloric acid activity; Water activity; Hydration numbers; Free water activity coefficient; The Raoult law deviations; Mean ionic activity coefficients; AQUEOUS-SOLUTIONS; STRONG ELECTROLYTES; WATER SOLUTIONS; ACTIVITY-COEFFICIENTS; IDEAL BEHAVIOR; NONELECTROLYTES; DISSOCIATION; PRESSURES; SPECTRA; HCLO4;

D O I：

10.1016/j.chemphys.2019.04.004

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 hydration numbers of perchloric acid were calculated using the Raoult law. The initial simplificated model is based on the hypothesis of the free water mole fraction equality to the water activity. A cause-effect relation has been established between the violation of this law and the distortion of the hydration numbers curve at low concentrations. In addition, this model was found unsatisfactory for evaluation of the solute activity coefficients. The more sophisticated model has been proposed for the calculations of hydration numbers, free water mole fraction and solute activity coefficients. Its main feature is the use of the free water activity coefficient. Estimated values of this coefficient differ from the unity in a small degree.

引用

页码：211 / 221

页数：11

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