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Titolo:
A new method to determine the ratio of clay minerals in mixtures by IR spectroscopy.
Autore:
Joussein, E; Petit, S; Decarreau, A;
Indirizzi:
Univ Poitiers, UMR 6532 CNRS HydrASA, F-86022 Poitiers, France Univ Poitiers Poitiers France F-86022 HydrASA, F-86022 Poitiers, France
Titolo Testata:
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE A-SCIENCES DELA TERRE ET DES PLANETES
fascicolo: 2, volume: 332, anno: 2001,
pagine: 83 - 89
SICI:
1251-8050(20010130)332:2<83:ANMTDT>2.0.ZU;2-R
Fonte:
ISI
Lingua:
FRE
Soggetto:
LAYER CHARGE; SMECTITES;
Keywords:
NH4+-smectite; kaolinite; crystallinity; integrated intensity; FTIR quantification;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Petit, S Univ Poitiers, UMR 6532 CNRS HydrASA, 40 Ave Recteur Pineau, F-86022 Poitiers, France Univ Poitiers 40 Ave Recteur Pineau Poitiers France F-86022 ance
Citazione:
E. Joussein et al., "A new method to determine the ratio of clay minerals in mixtures by IR spectroscopy.", CR AC S IIA, 332(2), 2001, pp. 83-89

Abstract

A method by IR spectroscopy was used to ascertain kaolinite and smectite in mixtures. Samples were prepared by mechanical mixture of two kaolinites with different crystallinity (KGa-1, KGa-2) and a montmorillonite (SAz-1). Kaolinite can be detected in amounts of less than 1%. The NH4+-saturated montmorillonite was easily determined using the NH4+ ion. The relative absorbances of nu (OH) for kaolinites and smectite were measured. The relative absorbance of nu (OH) for both kaolinite samples was the same indicating that the structural defects of kaolinite do not influence their nu (OH) absorbance. The ratio of the relative absorbance of nu (OH) for kaolinite and smectite was 4.9. (C) 2001 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/01/20 alle ore 13:32:06