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WATER VAPOR ISOTHERMS AND HEAT OF IMMERSION OF Na/Ca-MONTMORILLONITE SYSTEMS - 1. HOMOIONIC CLAY.
Year:
1975
Source of publication :
Clays and Clay Minerals
Authors :
Keren, Rami
;
.
Shainberg, Isaac
;
.
Volume :
23
Co-Authors:
Keren, R.
Shainberg, I.
Facilitators :
From page:
193
To page:
200
(
Total pages:
8
)
Abstract:
Adsorption isotherms for water vapor, c-spacing and heat of immersion in water were measured at 25 degree C at various r. h. The amount of water adsorbed as a function of the r. h. increased gradually, whereas the c-spacing increased, and the heat of immersion (per mole of adsorbed water) decreased in steps. There was good agreement between the calorimetric data, the heat calculated from the isotherms by use of BET equation, and the calculations from the ion-dipole model. A model is presented to describe the hydration of sodium and calcium montmorillonite. Refs.
Note:
Related Files :
CHEMICAL REACTIONS - Hydration
Clay
HOMOIONIC CLAY
Montmorillonites
Show More
Related Content
More details
DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
Language:
English
Editors' remarks:
ID:
23962
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:04
Scientific Publication
WATER VAPOR ISOTHERMS AND HEAT OF IMMERSION OF Na/Ca-MONTMORILLONITE SYSTEMS - 1. HOMOIONIC CLAY.
23
Keren, R.
Shainberg, I.
WATER VAPOR ISOTHERMS AND HEAT OF IMMERSION OF Na/Ca-MONTMORILLONITE SYSTEMS - 1. HOMOIONIC CLAY.
Adsorption isotherms for water vapor, c-spacing and heat of immersion in water were measured at 25 degree C at various r. h. The amount of water adsorbed as a function of the r. h. increased gradually, whereas the c-spacing increased, and the heat of immersion (per mole of adsorbed water) decreased in steps. There was good agreement between the calorimetric data, the heat calculated from the isotherms by use of BET equation, and the calculations from the ion-dipole model. A model is presented to describe the hydration of sodium and calcium montmorillonite. Refs.
Scientific Publication
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