BACKGROUND Metalloporphyrin ions, with planar shape, have been known to intercalate horizontally and diagonally between montmorillonite layers. Perpendicular intercalation inside montmorillonite has not been reported earlier. This work aims at achieving perpendicular intercalation inside montmorillonite in natural clays. Possible intercalation inside other forms of natural clay will also be inv...

S. YARIV, I. LAPIDES, A. NASSER, N. LAHAV, I. BRODSKY, ~ AND K.H. MICHAELIAN 2 Department of Inorganic and Analytical Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel ~Department of Applied Science, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel 2Natural Resources Canada, CANMET Western Research Centre, l Oil Patch Drive, Suite A202, Devon, Alberta, Canada T9G...

the use of various slags as by-products of steel industry is well established in civil engineering applications. however, the use of bos slag in the area of soil stabilization has not been fully researched and developed despite having similar chemical composition and mineralogy to that of portland cement. this paper reports on efforts to extend the use of bos slag to soil stabilization by deter...

Abstract The composite homogeneity of polymer and inorganic content is often constrained by the high difference in surface tension two components. Inorganic filler usually reduced using organosilane modification to improve miscibility. In this study, was introduced into Kaolinite clay produce silanated kaolinite (sKal). carried out reacting with 3-Aminopropyltriethoxy silane (APS) ethanol media...

The effect of watershed spatial scale on chemical weathering is inadequately known for subtropical environments. In order to determine the relationship between watershed scale and weathering chemistry, the Enoree River basin was sampled at seven different spatial scales ranging from second-order watersheds smaller than 2 km^2 to a sixth order watershed of 1840 km^2. The second-order watersheds ...

Halloysite is a common pedogenic clay mineral, often found in young soils developed on volcanic deposits (Dixon, 1989). It is a member of the kaolin group of clays with the same ideal stoichiometric composition as kaolinite [A12Si2Os(OH)4 ]. Halloysite, however, often contains water of hydrat ion (i.e., A12Si2Os(OH)4.nH20), and is commonly found with a tubular morphology. This "rol l ing" of ha...

-Selected Brazilian Oxisols were sampled and submitted to high-gradient magnetic separation (HGMS) to study the iron oxide-clay mineral associations. The soils, derived from four different parent materials, have mineralogy dominated mostly by hematite, goethite, and kaolinite. Gibbsite appears in most soil samples. The high-gradient magnetic separation showed good separation for some soils, as ...