... ground, sieved, and transferred into the aluminum cell, which was subsequently closed and attached to the cold finger of the Displex refrigerator (see above). Once the temperature was stabilized at ca. 200 K, a neutron diffraction pattern of the frozen, polycrystalline mixture was obtained to check...

..., thus dolomite and sodium carbonate impurities were possibly decomposed in the initial stage of the acid-treatment procedure. Aluminum leaching by acid treatment was also observed, but it was significantly less intense than that of the Allo/Ab sample ( Table 1 ). The most intense bands...

... 11 10 2001 © 2002, The Clay Minerals Society 2002 Adsorption Aluminum Clays Olefins Organoclays M 3+ -exchanged montmorillonites can catalyze the addition of alkenes to give products of isomerization, oligomerization, condensation, etherification and hydration...

... trichloroethene saturated homogeneous Grubb et al., 1997 alcohol flushing 76 × 76 × 2 F: glass B: aluminum toluene unsaturated homogeneous Grubb et al., 1998 alcohol flushing 76 × 76 × 2 F: glass B: aluminum toluene unsaturated heterogeneous Grubb and Sitar, 1999 alcohol flushing...

.... , Tzou , M.S. , Landau , S.D. and Raythatha , R.H. ( 1984 ) On the pillaring and delamination of smectite clay catalysts by polyoxy cations of aluminium . Journal of Molecular Catalysis , 27 , 195 – 212 . Raja , R. and Ratnasamy , P. ( 1996 ) Selective oxidation...

... containing reactive metals (e.g. uranium and aluminium), can corrode in the presence of the highly alkaline water in a cementitious environment. In their initial, undegraded form, polymeric materials can provide the appropriate, unreactive environment needed for the encapsulation of chemically active metals...

... on pressed discs that were prepared using a binder and boric acid. flotation frothers Pütürge pyrophyllite XRD Phyllosilicate minerals are common hydrophobic minerals present as impurities in complex sulfide ores and include aluminium silicate minerals such as pyrophyllite, kaolinite...

... , F. and Jones , W. ( 1996 ) Preparation and characterization of Ti-pillared acid-activated clay catalysts . Clays and Clay Minerals , 31 , 501 – 506 . Brindley , G.W. and Sempels , R.E. ( 1977 ) Preparation and properties of some hydroxy-aluminum beidellites . Clays...

... stretching vibration modes induce a strong absorption band in the spectral range 1100–1000 cm –1 (Fig. 5 ). On the other hand, the bands at 525 and 480 cm –1 are associated with Si–O–Al of octahedral-aluminum ions and Si–O–Si of bending vibrations, respectively, which do not undergo alterations in all...

.... A solution of one part white shellac and nine parts alcohol is used to develop the smoked paper seismograms. The recording drum for this instrument is made of sheet aluminum and is 30 in. in circumference and 16 in. wide, a size which also ac- commodates three other components. It must be well balanced...

... that consists of three rings of tetrahedral silicate and octahedral aluminum layers (Fig. 1c ). This model cluster consists of 7 inner H atoms, 19 interlayer H atoms ( Hobbs et al. 1997 ), and 9 dangling H atoms. Model cluster 4 (Si 13 O 37 H 22 ), which consists of three ditrigonal silicate rings, is obtained...

... & Kuroda, 2003 ; Murakami et al. , 2004 ). The formerly described derivative of kaolinite with phenylphosphonic acid ( Guimarães et al. , 1998 , 1999 ; Breen et al. , 2002 ) was shown in reality to be a layered aluminium phenylphosphonate formed by the decomposition of the kaolinite structure...

.... ( 1997 ) Synthesis of aluminum-pillared montmor-illonites using highly concentrated clay suspensions . Applied Catalysis A: General , 162 , 41 – 45 . Hur , S.G. , Kim , T.W. , Hwang , S.J. , Hwang , S.H. , Yang , J.H. , and Choy , J.H. ( 2006 ) Heterostructured...

... and aluminium montmorillonite . Colloids and Surfaces A: Physicochemical and Engineering Aspects , 316 , 70 – 77 . Kaczmarek , H. , Kamińska , A. , Światek , M. , and Rabek , J.F. ( 1998 ) Photo-oxidative degradation of some water-soluble polymers in the presence of accelerating...

.... , Wu Y. , Tang Y. & Li L. ( 2014a ) Synthesis of magnesium–aluminum layered double hydroxide intercalated with ethylene glycol by the aid of alkoxides . Inorganica Chimica Acta , 418 , 163 – 170 . Wang Y. , Li J. , Sun X. , Duan H. , Song C...

.... Variscite dissolution rates obtained from open and closed system experiments. Rates obtained from aqueous aluminium and phosphate concentrations are diamonds and squares, respectively. Open symbols represents rates from open system experiments and filled symbols represent rates from closed systems...

... and bacterial exudates and decomposition. The active agents from leaves are apparently primarily acidic polysaccharides and polyphenols, and may include amino acids, simple sugars, and enzymes with a porphyrin structure. Soils commonly contain large amounts of acid-type catalysts, especially iron and aluminum...

... is added to it. This solution is preferred for this work, even though it is very poisonous and if allowed to touch the skin inflicts rather unpleasant burns. Moreover, the mercury in the solution forms an amalgam with aluminum; therefore, the ordinary aluminum shields for centrifuge tubes can...

... ; Wang and Pinnavaia, 1998 ) that show improved tensile properties owing to the reinforcement effect of the silicate nanolayers. Magadiite with isomorphous substitution of aluminum may be used to prepare pentasil zeolites ( Borbély et al., 1997 ) as well as ferrierite ( Borbély et al., 1998...