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Cation-Exchange Properties of (Al + Na)-Substituted Synthetic Tobermorites
Cation exchange Cation substitution Cs-exchange Synthesis Tobermorite
2012/1/11
Tobermorite, Ca5Si6O16(OH)2·4H2O, is a hydrous calcium silicate that has a layer-type of structure similar to that of the 2:1 clay minerals. In its natural form, tobermorite exhibits little or no exch...
Anion-Exchange Properties of Hydrotalcite-Like Compounds
Anion exchange Anion selectivity Crystallite size Hydrotalcite Naphthol Yellow S X-ray powder diffraction
2012/2/7
Ion-exchange isotherms between hydrotalcite-like compounds (HT) of the NO3-, Cl-, and SO4- forms and F−, Cl− Br−, I−, OH−, SO42−, CO32−, and Naphthol Yellow S...
Ion-Exchange Properties of the Natural Zeolite Erionite
Erionite Ion exchange Offretite Selectivity Zeolite Zeolite T
2012/2/10
Natural erionite was exhaustively ion exchanged with Na+ to give the anhydrous unit-cell composition (K1.9Na5.4Ca0.1Mg0.1)[(AlO2)7.4(SiO2)28.6]. A thermodynamic study of alkali and alkaline earth meta...
Mineralogy and Cation Exchange Properties of Libby Vermiculite Separates as Affected by Particle-Size Reduction
Mineralogy Cation Exchange Properties Libby Vermiculite Particle-Size Reduction
2012/2/15
A vermiculite (Libby, Montana) sample obtained from the Zonolite company contained mostly coarse-grained separates with only 8? per cent clay. The 2?0 祄 fraction was used for particle-size reduction s...
Segregation and Exchange Properties of Alkylammonium Ions in a Smectite and Vermiculite
Segregation Exchange Properties Alkylammonium Ions Smectite Vermiculite
2012/2/15
X-ray diffraction analysis of mixed alkylammonium-exchanged smectite revealed segregation of different ion species into randomly ordered layers. Vermiculite, however, showed segregation into crystalli...
pH Dependent Ion Exchange Properties of Soils and Clays from Mazama Pumice
pH Ion Exchange Properties Soils Clays
2012/2/20
Cation exchange capacity (CEC) measurements were made for whole pumice soil samples by several methods, including standard procedures involving cation saturation, excess salt removal, and cation displ...