Adsorption of a liquid on a microporous adsorbent along the liquid-vapor equilibrium line. Communication 2. Average density of adsorbed substances in a microporous adsorbent (in Russian)
The average densities of adsorbates at p = p/sub s/ in the pores of zeolites and the temperature dependences of the adsorption values were determined for the previously studied argon, krypton, xenon-NaX zeolite, CO/sub 2/-NaX, and trifluorochloromethane-NaX systems and for the newly studied H/sub 2/O-NaA zeolite and ethanol-NaX zeolite systems. The values of the average densities and their temperature coefficients were compared with the values calculated with the Dubinin-Nikolaev and Basmadjian-Cook methods. It was shown that there are significant differences between the measured and calculated values. It was shown that the value of the average densities of the adsorbates and their thermal expansion coefficients differ significantly from the corresponding values for normal bulk liquid phases. It was found that for all nonpolar adsorbates, there is a temperature at which the densities of the adsorbate and the corresponding liquid are equal. This point, expressed in a reduced temperature scale (tau = T/T/sub Cr/), is equal to 0.88 +/- 0.04. The average density of water adsorbed by zeolite at all temperatures is greater than the density of liquid water.
- Research Organization:
- Institute of Physical Chemistry, Moscow, USSR
- OSTI ID:
- 6357820
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Vol. 35:6; Other Information: Translated from Izvestiya Akademii Nauk SSSR Seriya Khimicheskaya, 35: No. 6, 1231-1236(Jun 1986)
- Country of Publication:
- United States
- Language:
- Russian
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ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
ARGON
ADSORPTION
DENSITY
CARBON DIOXIDE
ETHANOL
FREONS
KRYPTON
WATER
XENON
ZEOLITES
SORPTIVE PROPERTIES
ADSORBENTS
CHLORINATED ALIPHATIC HYDROCARBONS
EQUILIBRIUM
FLUORINATED ALIPHATIC HYDROCARBONS
LIQUIDS
MICROSTRUCTURE
POROSITY
SODIUM OXIDES
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
VAPORS
ALCOHOLS
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTS
EXPANSION
FLUIDS
GASES
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MINERALS
NONMETALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE GASES
SODIUM COMPOUNDS
SORPTION
SURFACE PROPERTIES
400201* - Chemical & Physicochemical Properties
360603 - Materials- Properties
360602 - Other Materials- Structure & Phase Studies