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Rheology of Na-Rich Montmorillonite Suspension as Affected by Electrolyte Concentration and Shear Rate
Clay-particle Interaction Clay-suspension Viscosity Na-rich Montmorillonite
2011/12/5
Abstract: Rheological measurements were used to evaluate the particle-particle associations of Na-rich montmorillonite in suspensions, under various electrolyte concentrations. A 2% free electrolyte c...
Complex Formation of Cation-Exchanged Montmorillonites with Propylene Carbonate: Osmotic Swelling in Aqueous Electrolyte Solutions
Infra-Red Spectroscopy Intercalation Complex Montmorillonite Osmotic Swelling Propylene Carbonate
2011/12/7
Abstract: Montmorillonites saturated with Li+, Na+, K+, NH4+, Mg2+, Ca2+, Ba2+, or Ni2+ ions can form complexes with propylene carbonate (PC) by intercalation; the d(001) of montmorillonite expands to...
Sedimentation Behavior of a Fine Kaolinite in the Presence of Fresh Fe Electrolyte
Colloid Flocculation Iron Kaolinite Sedimentation
2011/12/31
The sedimentation behavior of a fine kaolinite, comprising a substantial proportion of colloidal particles as well as non-colloidal ones, has been studied when fresh FeCl3 or F2(SO4)3 electrolytes are...
Rheological Behavior of Na-Montmorillonite Suspensions at Low Electrolyte Concentration
Electrolyte Montmorillonite Particle attraction Rheology Shear Viscosity
2011/11/30
Abstract: The prevailing concept that positive-edge to negative-face attraction accounts for the rheological behavior of montmorillonite suspensions at low electrolyte concentration was investigated. ...
Thermodynamic Characterization of Clay/Electrolyte Systems
Adsorption Cation exchange Electrolyte Negative adsorption Thermodynamics Water
2012/2/7
Clay/electrolyte systems are best characterized using a new variable, notional interfacial content (NIC). The NIC approach emphasizes that any division of the total amount of a species present in a cl...
Low Frequency Conductivity Dispersion in Clay-Water-Electrolyte Systems
Low Frequency Conductivity Dispersion Clay-Water-Electrolyte Systems
2011/11/18
Abstract: The electrical conductivity of a colloid-water-electrolyte system increases with the frequency of the applied alternating electric current. The phenomenon is referred to as conductivity disp...
Electro-Optic Investigation of the Permanent and Induced Dipoles of Montmorillonite as Affected by Electrolyte Concentration
Electro-Optic Investigation Montmorillonite Electrolyte Concentration
2012/2/15
An electro-optic birefringence technique was employed to study the orientation mechanism of montmorillonite in an electric field. The instantaneous reversal of the field polarity produced evidence of ...
Electrolyte Concentration-Permeability Relationships in Sodium Illite-Silt Mixtures
Electrolyte Concentration-Permeability Relationships Sodium Illite-Silt Mixtures
2012/2/15
To examine the effects of clay swelling and dispersion on electrolyte concentration-permeability relationships of low clay content soils, flow experiments were conducted on a silt of fixed particle si...
The Transference Numbers of the Counter-Ions in Montmorillonite Paste as a Function of Water Film Thickness and Electrolyte Concentration
Counter-Ions Montmorillonite Paste Electrolyte Concentration
2012/2/15
The transference numbers of the counter ions in montmorillonite paste are determined as a function of the thickness of the water film (h) and of the diffuse double layer (1/κ).From measured E.M.F. val...
Low Frequency Dielectric Dispersion of Clay-Water-Electrolyte Systems
Low Frequency Dielectric Dispersion Clay-Water-Electrolyte Systems
2012/2/21
The dielectric properties of saturated kaolinite clay-water-electrolyte systems were determined over the frequency range of 30–105 c/s. Very large dielectric constants are observed at low frequencies....