X‐ray diffraction studies on the arrangement of water molecules in a smectite. I.Homogeneous two‐water‐layer Na‐beidellite | Zendy

Brahim J. B. | Zendy; Armagˇan N. | Zendy; Besson G. | Zendy; Tchoubar C. | Zendy

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X‐ray diffraction studies on the arrangement of water molecules in a smectite. I.Homogeneous two‐water‐layer Na‐beidellite

Author(s) -

Brahim J. B.,

Armagˇan N.,

Besson G.,

Tchoubar C.

Publication year - 1983

Publication title -

journal of applied crystallography

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.429

H-Index - 162

ISSN - 1600-5767

DOI - 10.1107/s0021889883010353

Subject(s) - lamellar structure , diffraction , homogeneity (statistics) , stacking , microcrystalline , molecule , homogeneous , materials science , crystallography , x ray crystallography , montmorillonite , silicate , clay minerals , chemical physics , mineralogy , chemistry , optics , thermodynamics , composite material , physics , organic chemistry , statistics , mathematics

A method of indirect analysis of X‐ray diffraction patterns of homogeneous hydrated microcrystalline silicates is introduced. This method is applied to a sodium beidellite of Rupsroth, Bavaria, Germany, hydrated with two water layers to determine all its structural characteristics: namely, the average dimension and size distribution of coherent domains, stacking mode of the layers along the c * direction, levels and number per unit cell of water molecules. A critical analysis on the `concept of homogeneity' of hydrates and a discussion on the conditions of its application to lamellar microcrystalline silicates with a few numbers of layers are made.

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