On the Chemical Composition of Sepiolite and Palygorskite
نویسندگان
چکیده
منابع مشابه
Properties and Applications of Palygorskite-sepiolite Clays
The palygorskite-sepiolite group of clay minerals has a wide range of industrial applications derived mainly from its sorptive, rheological and catalytic properties which are based on the fabric, surface area, porosity, crystal morphology, structure and composition of these minerals. For assessing potential industrial uses, the mineralogical and chemical composition of the clay and its basic ph...
متن کاملMg K-edge XANES of sepiolite and palygorskite
a £SRF, BP 220 F-38043 Grenoble Cedex, France b Dpto, Geologia, Universidad de Salamanca, £-37008 Salamanca, Spain C Dpto. Cristalogra/ia y Mineralogia, U Complutense de Madrid, £-28040 Madrid, Spain d INFM, clo £SRF, BP 220 F-38043 Grenoble Cedex, France e Lab. Cristallographie, CN RS, Grenoble BP 166, F-38042 Grenoble Cedex 09, France f INAH, Mexico DF, Mexico g TASC-INFM Area Science Park, 1...
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phatic communion is a cultural concept which differs across cultures. according to hofstede (2001), the u.s. tends to have individualistic culture; however, asian countries tend to have collectivistic cultures. these cultures view phatic communion differently. in individualistic cultures like u.s., phatic communion reflects speakers’ socio-cultural relationships in conversations. to see whether...
15 صفحه اولthe effect of explicit teaching of metacognitive vocabulary learning strategies on recall and retention of idioms
چکیده ندارد.
15 صفحه اولRole of Ferric Iron in the Oxidation of Hydrocortisone by Sepiolite and Palygorskite
-The role of adsorbed and structural Fe n+ in palygorskite and sepiolite with respect to the oxidation of hydrocortisone in aqueous suspension has been evaluated using electron spin resonance and UVvisible spectroscopy. Natural surface-adsorbed Fe 3+ showed an important activity in the oxidation process, although smaller than octahedral Fe 3+. The kinetics of oxidative degradation of hydrocorti...
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ژورنال
عنوان ژورنال: Clays and Clay Minerals
سال: 2010
ISSN: 0009-8604,1552-8367
DOI: 10.1346/ccmn.2010.0580101