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Microcalorimetric investigation of water vapor adsorption on silica gel
Microcalorimetry Diffusivity Silica gel–water pair Heat of adsorption
2011/11/10
Water vapor adsorption on silica gel was investigated using Tian–Calvet-type microcalorimetry. Differential heat of adsorption data was obtained. The setup of microcalorimetry was used volumetric syst...
Mechanism of Adsorption and Desorption of Water Vapor by Homoionic Montmorillonite: 3. the Mg2+, Ca2+, Sr2+ and Ba2+ Exchanged Forms
Adsorption Desorption Earth-Alkaline Cations Immersion Microcalorimetry Montmorillonite Relative Humidity Surface Area X-ray Diffraction
2011/12/1
Abstract: The swelling of some well-defined Mg-, Ca-, Sr- and Ba- homoionic montmorillonites was studied in the domain of water relative pressures lower than 0.95. This involves the expansion of the c...
Mechanism of Adsorption and Desorption of Water Vapor by Homoionic Montmorillonites: 2. The Li+, Na+, K+, Rb+, and Cs+-Exchanged Forms
Adsorption Desorption Exchangeable cations Immersion microcalorimetry Montmorillonite Relative humidity Surface area XRD
2011/12/28
Methods previously used to distinguish between water adsorbed on external surfaces and in the interlamellar space of Na-montmorillonite during adsorption and desorption of water vapor have been extend...
Adsorption of Water Vapor by Soils: Investigations of the Influence of Organic Matter, Iron, and Aluminum on Energetic Heterogeneity of Soil Clays
Soil constituents Surface heterogeneity Water adsorption
2011/12/29
Water vapor adsorption isotherms were measured for samples of loessial soil clays modified by removing organic matter and Fe and Al compounds. The isotherms were analyzed by the exponential adsorption...
Water Vapor Isotherms and Heat of Immersion of Na- and Ca-Montmorillonite Systems. III. Thermodynamics
Adsorption Heat of immersion Montmorillonite Thermodynamics Water
2012/2/9
The integral thermodynamic quantities of adsorbed water on Na- and Ca-montmorillonite have been calculated from water adsorption isotherms on Na- and Ca-montmorillonite at 298° and 313°K and from one ...
Water Vapor Isotherms and Heat of Immersion of Na/Ca-Montmorillonite Systems—II: Mixed Systems
Adsorption Calcium Electrostatic Hydration Isotherm Montmorillonite Sodium
2012/2/9
Adsorption isotherms for water vapor, c-spacing and heat of immersion in water of mixed Na/Ca-montmorillonite were measured at 25°C at various RH. There was good agreement between the calorimetric dat...
Water Vapor Isotherms and Heat of Immersion of Na/Ca-Montmorillonite Systems—I: Homoionic Clay
Water Vapor Isotherms Na/Ca-Montmorillonite Systems Homoionic Clay
2012/2/13
Adsorption isotherms for water vapor, c-spacing and heat of immersion in water of Na- and Ca-montmorillonite were measured at 25°C at various r.h. The amount of water adsorbed as a function of the r.h...