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Thermal analysis and Infrared emission spectroscopic study of kaolinite–potassium acetate intercalate complex
Kaolinite Potassium acetate Intercalation complex Infrared emission spectroscopy
2011/11/10
The thermal behavior and decomposition of kaolinite–potassium acetate intercalation complex was investigated through a combination of thermogravimetric analysis and infrared emission spectroscopy. Thr...
Relationship Between Soil Potassium Forms and Mineralogy in Highly Calcareous Soils of Southern Iran
Arid Illite Calcium carbonate Exchangeable K HNO -extractable K
2011/11/11
Thirty seven soil samples collected from arid and semiarid regions of southern Iran were studied to determine the different forms of potassium and their relation with clay mineralogy and other soil pr...
Thermoanalytical studies of natural potassium, sodium and ammonium alunites
Alunite thermal analysis, Controlled rate thermal analysis, Dehydration, Dehydroxylation
2011/11/10
Dynamic and controlled rate thermal analysis (CRTA) has been used to characterise alunites of formula [M(Al)3(SO4)2(OH)6] where M+ is the cations K+, Na+ or NH4 +. Thermal decomposition occurs in a se...
Utilization of Plant Ash for the Fabrication of Novel Superabsorbent Composites with Potassium-Release Characteristics
superabsorbent composite plant ash potassium fertilizer release swelling water retention
2011/12/13
ABSTRACT: Design and synthesis of the agricultural and ecological superabsorbent materials with cost-efficient and fertilizer-release characteristics has recently attracted considerable interests. In ...
Infrared Study of the Intercalation of Potassium Halides in Kaolinite
CMS Clay KGa-1 Infrared Spectra Intercalation Complexes Kaolinite Potassium Halide-Kaolinite Complexes X-ray Diffractograms
2011/12/2
Abstract: KCl-, KBr-, and KI-kaolinite intercalation complexes were synthesized by gradually heating potassium-halide discs of the dimethylsulfoxide (DMSO)-kaolinite intermediate at temperatures to 33...
Monte Carlo Simulation of the Total Radial Distribution Function for Interlayer Water in Sodium and Potassium Montmorillonites
Adsorbed Water Montmorillonite Neutron Diffraction Water
2011/12/7
Abstract: Monte Carlo simulations based on tested water-water, cation-water, and water-clay potential functions were applied to calculate radial distribution functions for O-O, O-H and H-H spatial cor...
Subsolidus and melting experiments of a K-rich basaltic composition to 27 GPa: Implication for the behavior of potassium in the mantle
K-rich basaltic composition 27GPa Subsolidus and melting experiments
2012/3/30
SubsolidusandmeltingexperimentsofaK-richbasalticcompositionhavebeenper-
2wt%)at6¤C12.5GPaandabove22.5GPa,respectively.Bothpyroxeneandgarnetma
actasmainreservoirsforKinthemantle.Sanidine(KAlSi
O )or...
Hydroxy-Interlayers in Expansible Layer Silicates and Their Relation to Potassium Fixation
Hydroxyaluminum Hydroxyaluminosilicate Montmorillonite Potassium Fixation Vermiculite
2011/12/8
Abstract: Hydroxyaluminosilicate (HAS) and hydroxyaluminum (HyA) ionic solutions having final Al concentrations ranging from 3.74 to 4.00 mM; NaOH/Al molar ratios of 1.0, 2.0 and 2.5; and Si/Al molar ...
Reversed determination of the reaction: Phlogopite + quartz = enstatite + potassium feldspar + H2O in the ranges 750-875 篊 and 2-12 kbar at low H2O activity with concentrated KCl soluctions
Reversed determination Phlogopite + quartz = enstatite + potassium feldspar + H2O H2O KCl soluctions
2012/3/31
The reaction of phlogopite plus quartz to enstatite, potassium feldspar, and aqueous fluid in the system KMASH-KCl was reversed at 2?2 kbar and 750?75 8C and at low H2O activities by reversal of the H...
TEM investigation of potassium-calcium feldspar inclusions in B鴊gild plagioclase
TEM investigation potassium-calcium feldspar inclusions B鴊gild plagioclase
2012/4/6
PotassiumcalciumfeldsparinclusionsinaBggildplagioclasewereinvestigatedbyanalyticalhighresolutiontransmissionelectronmicroscHRTEM),andtheformationprocessoftheseinclusionsisconsideredbasedontheAlSiorder...
A Rietveld and infrared study of synthetic amphiboles along the potassium-richterite-tremolite join
Rietveld infrared study synthetic amphiboles potassium-richterite-tremolite join
2012/4/5
Amphibolesweresynthesizedat750 C,1kbar(H O)forcompositionsat20%intervalsalongthejoinpotassium-richterite¤Ctremolite.Structuralvariations,siteoccupancies,an
modalanalysesoftheexperimentalproducts(amph...
Crystal Structure Modeling of a Highly Disordered Potassium Birnessite
Birnessite Crystal Structure Modeling Turbostratic Stacking
2011/12/27
The structure of a highly disordered synthetic birnessite was studied by comparing powder X-ray diffraction (XRD) data with calculated patterns generated by BIRNDIF and WILDFIRE© in an attempt to...
Thermochemistry of natural potassium sodium calcium leonhardite and its cation-exchanged forms
Thermochemistry potassium sodium calcium leonhardite cation-exchanged forms
2012/4/6
Leonhardite, a partially dehydrated laumontite, and its alkali variety, primary leonhar-dite, have been studied byhigh-temperature calorimetry. The enthalpies offormation from oxides and elements at 2...
Short-range disorder of Si and Ti in the tetrahedral double-chain unit of synthetic Ti-bearing potassium-richterite
Short-range disorder Si Ti double-chain unit of synthetic Ti-bearing potassium-richterite
2012/4/5
Ti-rich potassium-richterite samples weresynthesized at 900°C and 1kbar PH20and characterized by Fourier-transform infrared spectroscopy (FTIR) and Rietveld structure refinement. The infrared spectrum...
Potassium Halide-Treated Montmorillonite (KTM) as a Solid Phase in Liquid Chromatography
Disubstituted benzenes HPLC Montmorillonite Potassium hatides
2011/12/30
Columns for high pressure liquid chromatography were prepared from spray dried samples of montmorillonite that were heated with potassium halides (KTM) to increase both the cation density on the clay ...