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Absorption of Infrared Radiation by D2O and HDO Mixed with Montmorillonite
Absorption Deuterium Infrared Molar absorptivity Montmorillonite Water
2012/2/8
The frequency, ν, for O-D stretching in D2O films between the superimposed layers of different micas and montmorillonites was measured at several film thicknesses and temperatures of 2° and 25°C by in...
Ca-K Exchange Reaction and Interstratification in Montmorillonite
Enthalpy Entropy Free energy Interstratification Ion exchange Montmorillonite
2012/2/10
Cation-exchange equilibrium for Ca-K-montmorillonite was studied at 35亱, 50亱, and 90亱C and at three total normalities of the equilibrium solution (0.1, 0.05, and 0.01 N). Changes of the standard free ...
The Interaction Between Roundup (Glyphosate) and Montmorillonite. Part II. Ion Exchange and Sorption of Iso-Propylammonium by Montmorillonite
Adsorption Exchange Glyphosate Herbicide Iso-propylammonium Montmorillonite
2011/11/18
Abstract: The adsorption mechanism of iso-propylammonium (PAH+), the cationic component of Roundup, by various homoionic montmorillonites and the structures of the associations obtained in the interla...
The Interaction Between Roundup (Glyphosate) and Montmorillonite. Part I. Infrared Study of the Sorption of Glyphosate by Montmorillonite
Adsorption Glycine Glyphosate Herbicide Montmorillonite Zwitterion
2011/11/18
Abstract: The reaction between the herbicide “Roundup,” (PAH)3G, which is the commercial name of the iso-propylammonium salt of glyphosate (H3G, N-phosphonomethyl glycine), and montmorillonite was stu...
Layer Charge-Cation-Exchange Capacity Relationships in Montmorillonite
Cation-exchange capacity Hectorite Hofmann-Klemen effect Layer charge Montmorillonite
2012/2/10
The charge density distribution among different classes of a series of reduced charge montmorillonites is heterogeneous as in the parent Camp Berteau clay. In addition, charge reduction proceeds inhom...
Origin of Iron-Rich Montmorillonite from the Manganese Nodule Belt of the North Equatorial Pacific
Authigenic Formation Deep-Sea Clay Manganese Nodule Belt Montmorillonite Pacific Sediments Smectite
2012/2/9
Clay minerals in the upper 50 cm of sediment that surround the Cu- and Ni-rich manganese nodules in the North Equatorial Pacific form two fractions: terrigenous (mostly eolian) illite, chlorite, and k...
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...
The Diffusion of Interlamellar Water in the 23.3 A Na-Montmorillonite:Pyridine/H2O Intercalate by Quasielastic Neutron Scattering
Diffusion Intercalate Montmorillonite Neutron Pyridine Quasielastic
2012/2/9
The diffusion of water in the title intercalate has been measured by quasielastic neutron scattering. The diffusion coefficient (6.1 × 10−7 cm2 s−1 at 23.5°C) is one order less than that f...
Preparation of Montmorillonite-Nylon Complexes and Their Thermal Properties
Aminocaproic Acid Intercalation Montmorillonite Nylon Polymer
2012/2/9
Montmorillonite-aminocaproic acid complexes (monomer complexes) were prepared by the intercalation of 6-aminocaproic acid to various homoionic (Na+, Ca2+, Mg2+, Co2+, and Cu2+) montmorillonites. Infra...
Ideal Behavior in Na+-Trace Metal Cation Exchange on Camp Berteau Montmorillonite
Cation Exchange Heterovalent Exchange Montmorillonite Trace Metals
2012/2/9
The conditions under which an exchanger phase will behave as an ideal mixture are established from thermodynamic principles. It is shown that, if a stoichiometric cation-exchange reaction is reversibl...
High Surface Area Solids Obtained by Reaction of Montmorillonite with Zirconyl Chloride
Adsorption Exchange Hydroxyzirconium Montmorillonite Surface Zirconium
2012/2/9
Exchange reactions of Na-montmorillonite with zirconyl chloride solutions give products with basal spacings near 18 Å which are stable to 500°C and have surface areas of the order of 300–400 m2/...
Hydroxy-Nickel Interlayering in Montmorillonite by Titration Method
Chlorite Interlayer Montmorillonite Nickel Potentiometric
2011/11/18
Abstract: Nickel nitrate solution is potentiometrically titrated (a) with montmorillonite, (b) without montmorillonite, in the nitrate solution. X-ray powder diffraction and chemical analyses are made...
Clay-Organic Molecule Interactions: Oxidation of Acetaldehyde by Montmorillonite in N2 Atmosphere at Room Temperature
Acetaldehyde Acetate Adsorption Montmorillonite Oxidation
2012/2/10
Oxidation of acetaldehyde molecules adsorbed on Na- and Mg-Wyoming montmorillonite at room temperature (20–25°C) and in N2 atmosphere has been studied by I.R. spectroscopy. A comparison between clay-a...
A Direct Procedure for Determining the Number of Plates in Tactoids of Smectites: The Na/Ca-Montmorillonite Case
Bentonite Conductivity Dispersion Hydraulic Smectite Tactoid
2012/2/10
The dispersion of clays is of great importance in determining various soil properties such as hydraulic conductivity. A procedure which involves fixing followed by embedding of clay particles in an ep...
Cross-Linked Smectites. II. Flocculation and Microfabric Characteristics of Hydroxy-Aluminum-Montmorillonite
Aluminum Flocculation Heterocoagulation Ligand Lithium Montmorillonite
2012/2/10
Cross-linking of Li-montmorillonite by hydroxy-aluminum oligomers was performed in a specially constructed mixing apparatus. Observations on flocculation and solution composition were carried out duri...