WATER ACTIVITY MEASUREMENTS WITH SINGLE SUSPENDED DROPLETS - THE NACL-H2O AND KC1-H2O SYSTEMS

被引：107

作者：

TANG, IN

MUNKELWITZ, HR

WANG, N

机构：

[1] Brookhaven Natl Lab, Upton, NY, USA, Brookhaven Natl Lab, Upton, NY, USA

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1986年 / 114卷 / 02期

关键词：

SODIUM CHLORIDE - SOLUTIONS - Thermodynamic Properties - VAPORS - Measurements;

D O I：

10.1016/0021-9797(86)90426-1

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 levitation of a single micrometer-sized particle in a controlled water vapor environment is shown to be a novel experimental technique for measuring the thermodynamic properties of concentrated electrolyte solutions. Water activity data are obtained for the aqueous solutions of NaCl and KCl at 25 degree C over the entire concentration range up to the critical supersaturation concentration. Empirical constants are derived from a best fit of the data to the extended form of the Debye-Hueckel equation.

引用

页码：409 / 415

页数：7

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