Water activity measurements with single suspended droplets: the NaCl-H/sub 2/O and KCl-H/sub 2/O systems

Journal Article · Sun Nov 30 23:00:00 EST 1986 · J. Colloid Interface Sci.; (United States)

DOI:https://doi.org/10.1016/0021-9797(86)90426-1· OSTI ID:6540037

Tang, I N; Munkelwitz, H R; Wang, N

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 KCI at 25/sup 0/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.

• Research Organization: Brookhaven National Lab., Upton, NY
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6540037
• Journal Information: J. Colloid Interface Sci.; (United States), Journal Name: J. Colloid Interface Sci.; (United States) Vol. 114:2; ISSN JCISA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
AQUEOUS SOLUTIONS
CHLORIDES
CHLORINE COMPOUNDS
DATA
DISPERSIONS
ELECTROLYTES
EXPERIMENTAL DATA
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
MATHEMATICAL MODELS
MEASURING METHODS
MEDIUM TEMPERATURE
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
QUANTITY RATIO
SATURATION
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUTIONS
SUPERSATURATION
THERMODYNAMIC ACTIVITY
THERMODYNAMIC PROPERTIES
THERMODYNAMICS
WATER