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Intergradient Vermiculite-Kaolin Mineral in a Korean Ultisol
Chlorite Difference infrared spectroscopy Intergradient Kaolin Ultisol Vermiculite
2012/2/6
A 14-侌 mineral coexisting with kaolin minerals, mica, and gibbsite in a Korean Ultisol and showing X-ray powder diffraction features of 乬chloritized乭 vermiculite was studied by a combination of method...
Structural Model for Benzidine-Vermiculite
Benzidine Hydrogen bonding Intercalation Vermiculite X-ray diffraction
2012/2/7
A combination of X-ray diffraction, infrared, and chemical data has established that the ion exchange of vermiculite with singly charged benzidine cations in an aqueous solution at pH 1.6 results in a...
Regularly Interstratified Chlorite/Vermiculite in Contact Metamorphosed Red Beds, Newark Group, Connecticut Valley
Chlorite Contact metamorphism Hydrothermal Mixed-layer Red beds Vermiculite
2011/11/22
Abstract: A regularly interstratified chlorite/vermiculite occurs in red beds of the East Berlin Formation (Early Jurassic age) in the Connecticut Valley. The mineral is restricted to a 2.5-m wide zon...
Synthesis and Properties of Heat-Stable Expanded Smectite and Vermiculite
Expanded Clays Heat-Stable Clays Hectorite Intercalation Intersalation Phenanthroline Smectite Vermiculite
2012/2/9
When aqueous dispersions of Na+-smectite or n-butylammonium-vermiculite react with sulfate salts of Fe(II), Co(II), or Ni(II) bipyridyl or 1, 10-phenanthroline complexes in excess of the cation-exchan...
Selectivity and Adsorption Capacity of Smectite and Vermiculite for Aluminum of Varying Basicity
Adsorption Aluminum Expansion Smectite Vermiculite
2011/11/18
Smectite (from South Dakota, Wyoming, and Mississippi) and vermiculite (Transvaal) were treated with solutions of Al(OH)B(3−B)+, with B varying from 0 to 2.5. The average basicity (OH/Al = B) of...
The Ordering of Cetylpyridinium Bromide on Vermiculite
Adsorption Cetylpyridinium Exchange Interlayer Superlattice Vermiculite
2012/2/10
X-ray superlattice reflections, infrared spectroscopy, and chemical analyses have established that cetylpyridinium bromide (CPB) is highly ordered when adsorbed on vermiculite. The molecules, which st...
X-ray Study of the Interlayer Region of a Barium—Vermiculite
X-ray Study the Interlayer Region Barium— Vermiculite
2012/2/13
An X-ray diffraction analysis of a barium-vermiculite shows it to have a triclinic unit cell with the following dimensions a = 5.33, b = 9.26, c = 12.47 侌, 兛 = 100.75亱 兝 = 93.5亱 and 兞 = 90亱. The propo...
The Surface Reactivity Of Vermiculite Towards Hexamethylene Diisocyanate (HMDI)
Surface Reactivity Vermiculite Hexamethylene Diisocyanate (HMDI)
2012/2/13
The reaction of hexamethylene diisocyanate with the surface of heat-activated vermiculite parallels the reactions with the oxides SiO2, Al2O3, MgO considered individually, which a number of authors ha...
Experimental Alteration of a Chlorite into a Regularly Interstratified Chlorite-Vermiculite by Chemical Oxidation
Chlorite Chlorite-Vermiculite Chemical Oxidation
2012/2/13
A IIb orthochlorite (brunsvigite), from the chloritic metabasalt in the Middletown Valley of Maryland, was altered to a regularly interstratified chlorite—vermiculite after four months reaction in sat...
The Orientation of Ornithine and 6-Aminohexanoic Acid Adsorbed on Vermiculite from Polarized I.R. ATR Spectra
Ornithine 6-Aminohexanoic I.R. ATR Spectra
2012/2/13
Determinations of the molecular orientation of ornithine and 6-aminohexanoic acid on the surface of vermiculite using polarized i.r. attenuated total reflectance have shown that the ornithine molecule...
Cation and Silica Relationships of Mica Weathering to Vermiculite in Calcareous Harps Soil
Relationships Mica Calcareous Harps Soil
2012/2/13
A steady state reaction of apparent equilibrium of K mica + Ca2+ ⇄ Ca vermiculite + K+ was indicated by prolonged dissolution extractions from Blount soil clay (from northern Indiana) abundant i...
A Study on the Cation Exchange of [Co(NH3)6]3+ from H-Co (NH3)6-Vermiculite by Inorganic and Quaternary Ammonium Ions
[Co(NH3)6]3+ H-Co (NH3)6-Vermiculite Inorganic Quaternary Ammonium Ions
2012/2/15
The exchange of [Co(NH3)6] 3+ from its vermiculite complex has been carried out with a number of inorganic and alkyl quaternary ammonium ions of varying ionic sizes. The distribution and selectivity c...
A Kinetic Survey of the Cation Exchange and of the Oxidation of a Vermiculite
Kinetic Survey Oxidation Vermiculite Cation Exchange
2012/2/14
With the use of a BaCl 2 solution containing radioactive Ba2+ ions, kinetics of cation exchange have been done on a Kenya vermiculite, natural on one hand and previously oxidized either by 50°C water ...
Lysine and vermiculite form a stable, ordered, interlamellar complex which has a well defined superlattice structure with respect to the ab-plane of vermiculite. The lysine molecules lie at a low angl...
A Structural Investigation of a Vermiculite-Piperidine Complex
Vermiculite-Piperidine Complex Structural Investigation
2011/11/18
Abstract: A vermiculite-piperidine complex was investigated by a single crystal three dimensional X-ray diffraction procedure. The complex was prepared by ion exchange of a Na-vermiculite at pH 8. A t...